The cover image anchors this chapter summary in Kissinger’s larger study of diplomacy and international order.
In 1994, Henry Kissinger published the book Diplomacy. He was a renowned scholar and diplomat who served as the United States National Security Advisor and Secretary of State. His book provides an extensive sweep of the history of foreign affairs and the art of diplomacy, with a particular focus on the 20th century and the Western World. Kissinger, known for his alignment with the realist school of international relations, inquires into the concepts of the balance of power, raison d'État, and Realpolitik across different eras.
His work has been widely praised for its scope and intricate detail. Yet, it has also faced criticism for its focus on individuals over structural forces, and for presenting a reductive view of history. Also, critics have also pointed out that the book focuses excessively on Kissinger's individual role in events, potentially overstating his impact. In any case, his ideas are worthy of consideration.
This article presents a summary of Kissinger's ideas in the seventh chapter of his book, called "A Political Doomsday Machine: European Diplomacy Before the First World War".
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The Collapse of Restraint in the Balance of Power
By the end of the first decade of the twentieth century, the Concert of Europe had practically ceased to operate. For roughly a century after the Napoleonic Wars, the Concert had helped the Great Powers contain crises through consultation, flexibility, and a shared interest in avoiding continental war. That system allowed rivalry, coercion, and limited conflict while preserving procedures and habits of restraint. In Kissinger’s interpretation, the pre-1914 order retained the language of balance while replacing the logic of balance with an armaments race and a division into two increasingly inflexible blocs.
The result resembled the Cold War in its bipolar structure but differed from it in a decisive respect. In the nuclear age, avoidance of general war became a central objective of policy; the costs were manifestly catastrophic. Before 1914, European leaders still assumed that war could be limited and politically usable. Some thinkers even treated periodic war as a kind of cleansing force. The First World War destroyed that illusion only after Europe’s leaders had absorbed modern mobilization systems into older diplomatic habits without grasping the new scale of risk.
Kissinger rejects the idea that responsibility for the catastrophe can be assigned to one country alone. Each major power contributed shortsightedness, irresponsibility, or complacency. Nevertheless, he gives special weight to Germany and Russia: their political natures undermined restraint at the center of the European system. Germany, newly unified and militarily formidable, sought security in ways that frightened all its neighbors. Vast and persistent Russia pursued expansion in areas the Concert treated as European questions: the Balkans, the Ottoman Empire, and the Straits. Once those two powers confronted one another, the peace of Europe depended heavily on Britain’s ability to remain an independent balancer. Germany’s conduct gradually made that impossible.
Germany’s Insecurity After Unification
Kissinger begins his account of Germany with the paradox of a strong state that behaved as if it were permanently threatened. German insecurity had historical roots. For two centuries, the German lands had been the battlefield of European wars rather than their principal instigator. The Thirty Years’ War devastated the German population, and many major eighteenth-century and Napoleonic campaigns were fought on German soil. A unified Germany therefore had an understandable interest in preventing a return to vulnerability.
Yet Kissinger argues that the new German Empire approached this problem too narrowly as a military question. After unification, Germany was no longer Frederick the Great’s vulnerable Prussia. It was the strongest continental power, and that strength made exceptional diplomatic moderation necessary. Instead, after Bismarck’s fall, German leaders often acted as if power could compel reassurance. Their quest for absolute security produced insecurity for others, and their neighbors responded by drawing together.
Kissinger attributes part of Germany’s problem to the artificial character of Bismarck’s Reich. Britain, France, and even Austria rested on broader integrating ideas than the new Germany. It was neither a liberal state grounded in traditional liberties, nor a revolutionary state with a universal doctrine, nor a multinational empire with an old imperial mission. It was, in Kissinger’s phrase, essentially a greater Prussia, created to increase its own power and deliberately excluding Austrian Germans. That lack of philosophical purpose helped make German foreign policy restless and aimless.
German military planning deepened the danger. Imagining that it might one day have to fight all its neighbors at once, Germany prepared for the worst-case scenario. Those preparations in turn confirmed the fears of surrounding states. A Germany strong enough to defeat all neighboring powers in combination was obviously strong enough to defeat any one of them alone. Thus the German search for security created the coalition psychology it most feared.
Bismarck had understood this danger and had used a complex alliance system to restrain Germany’s partners as much as to protect Germany itself. His diplomacy downplayed German power, preserved multiple channels, and kept incompatible interests from hardening into hostile camps. His successors lacked his patience and subtlety. They favored simpler formulas, public assertiveness, and military strength. The result was a foreign policy that combined truculence with indecision: Germany threatened often, defined objectives poorly, and recoiled when crises became dangerous.
The Kaiser, Weltpolitik, and the Politics of Posturing
The accession of William II gave this diplomatic pattern a personal style. After Emperor William I died in 1888 and Frederick III ruled only briefly before dying of cancer, William II inherited the throne. In 1890, he dismissed Bismarck, refusing to govern in the shadow of the empire’s founder. Kissinger treats this decision as a turning point: it removed the one statesman capable of making Germany’s strength compatible with European equilibrium.
William II wanted international recognition of Germany’s importance, but he had no coherent concept of how German power should be used. He and his entourage spoke of Weltpolitik, or global policy, without defining its relationship to the national interest. The slogans were large, the tone was aggressive and the substance was thin. Kissinger emphasizes this gap between rhetoric and purpose: German leaders made dramatic gestures without knowing what settlement they wanted, and their boastfulness often concealed timidity when confrontation required perseverance.
This pattern helped produce the remarkable reversal of alliances after Bismarck’s dismissal. In the late nineteenth century, Britain and France were colonial rivals, Britain and Russia had long opposed each other across Central Asia and the Near East, and Britain had repeatedly looked for partners against Russia. In 1898, Britain and France nearly went to war over Egypt. Yet within a decade, Britain, France, and Russia were moving toward the same side. Kissinger sees this reversal as the product of German pressure, miscalculation, and failure to understand how balance-of-power politics worked.
German leaders resented the reluctance of other states to ally with Europe’s strongest continental power. Their response was to bully those states into recognizing the value of German friendship. This method had the opposite effect. By threatening absolute insecurity for others, Germany triggered counter-coalitions. Kissinger’s central point is that domination has no diplomatic shortcut. If a state seeks hegemony, whether intentionally or through the accumulation of capabilities others cannot tolerate, it eventually faces the choice between restraint and war.
Russia’s Expansion and the Weakness of Autocratic Policy
For much of imperial Germany’s existence, Russia, not Germany, had been considered the chief threat to peace. British leaders such as Palmerston and Disraeli feared Russian advances toward Egypt, India, and the Straits. By 1913, German leaders had developed a corresponding fear of being overwhelmed by Russian power. Kissinger acknowledges that Russia’s military preparations were real, but he argues that the preparations of all powers had become detached from definable political aims. Railways, mobilization timetables, and general staffs produced evidence of military readiness everywhere. Detached from limited objectives, those preparations were interpreted as proof of vast hostile ambitions.
Russia appeared especially ominous through the combination of size, persistence, and an ambiguous relationship to Europe. In the West, it participated in the Concert of Europe and listened to arguments about equilibrium. Yet it repeatedly tried to settle the fate of Turkey, the Balkans, and the Straits unilaterally or by force. Russia expected Europe to accept its special claims and felt aggrieved when other powers treated these questions as matters for the Concert.
In Asia, Russia’s expansion was even less restrained by European diplomatic habits. It advanced across Siberia and the Far East, negotiated unequal treaties with China, and came to imagine that large parts of Asia might naturally fall under Russian influence. Serge Witte could tell Nicholas II that Russia’s frontier and position made the absorption of a large part of the Chinese Empire only a matter of time. Such claims reflected a broader Russian tendency to identify greatness with territorial accumulation, even when new territories weakened rather than strengthened the state.
Russia’s policymaking structure magnified this tendency. The Foreign Office, staffed often by officials oriented toward Europe, was only one part of the system. The Asiatic Department handled the Ottoman Empire, the Balkans, and the Far East—the very zones where Russia was advancing. The Asiatic Department operated outside the main habits of Concert-of-Europe diplomacy. Meanwhile, the tsar remained the only decisive authority. Foreign ministers lacked the executive power of figures such as Bismarck, Salisbury, or Roosevelt. Policy was therefore vulnerable to court politics, military adventurism, nationalist agitation, and the moods or absences of the autocrat.
By the reign of Nicholas II, Kissinger argues, Russia was paying for this arbitrary structure. The defeat by Japan in 1905 should have encouraged domestic consolidation, especially along the lines associated with Peter Stolypin. Instead, Russia shifted back toward Pan-Slavism and the dream of influence at Constantinople. For Kissinger, the tragedy lay in Russia’s real need for internal development. Expansion after a certain point did not enhance Russian power; it drained it. The country fought too many wars, absorbed costs beyond the value of its gains, and continued to hunger for territory it did not need and could not digest.
Britain’s Role as Balancer and the End of Splendid Isolation
The collision between an impetuous Germany and a relentless Russia made Britain’s position decisive. In 1890, “splendid isolation” still described British policy. Britain prided itself on acting as Europe’s balance wheel, remaining outside permanent continental alliances and intervening only when necessary to prevent a single power from dominating the Continent. Within twenty-five years, British soldiers were dying in Flanders alongside France against Germany. Kissinger presents this transformation as one of the chapter’s crucial developments.
The statesman who presided over the early part of the transition was Lord Salisbury, a figure deeply rooted in traditional British assumptions. Salisbury believed Britain should remain active at sea, defend imperial interests, and avoid entanglement in continental alliance systems. Yet he also had to adapt to a changing distribution of power. Germany’s economy was rising. France and Russia were pressing Britain in colonial regions, while the empire’s informal claims stretched across a wide arc from the Persian Gulf to China and North Africa. Britain remained preeminent, but it was no longer unchallenged.
The Mediterranean Agreements of 1887 associated Britain indirectly with the Triple Alliance of Germany, Austria-Hungary, and Italy, mainly to strengthen its position against France in North Africa and Russia in the Balkans. Those agreements were temporary expedients. Geopolitical pressure was gradually pulling Britain out of isolation, and Germany had a real opportunity to shape the transition. Instead, Germany misunderstood both British policy and its own needs.
The most consequential German mistake came in 1890, when William II and his advisers refused to renew the Reinsurance Treaty with Russia. They wanted policy to be simpler, wanted to reassure Austria, and hoped to clear the way for an alliance with Britain. Kissinger judges all three motives as evidence of geopolitical immaturity. Germany’s position required complexity. Bismarck’s simultaneous alliance with Austria and treaty with Russia had allowed Germany to restrain both Austrian fears and Russian ambitions. Ending the Reinsurance Treaty reduced German leverage over Austria and convinced Russia that Germany had chosen Austria in the Balkans.
Russia therefore began to look toward France. Germany expected France’s focus on Alsace-Lorraine and Russia’s focus on the Balkans to keep them apart. Germany’s tie to Austria instead made France and Russia need each other. France could not hope to recover Alsace-Lorraine without weakening Germany, and Russia could not expect to inherit or influence Slavic territories in the Habsburg Empire if Germany stood firmly behind Austria. The Franco-Russian diplomatic agreement of 1891 and military convention of 1894 therefore marked a watershed. What began as diplomatic support became a military alliance directed in practice against Germany.
For Kissinger, this development weakened the balance of power by making flexibility disappear. A workable balance requires shifting alignments and a balancer capable of preventing either coalition from becoming dominant, or loose alliances that can compromise and rearrange themselves issue by issue. After the Franco-Russian alliance, Britain still had a chance to remain balancer. Once Britain moved toward France and Russia, the balance of power hardened into a zero-sum system.
The Failed Search for an Anglo-German Understanding
Germany still hoped to offset the Franco-Russian alignment through Britain, but its methods repeatedly defeated its purpose. Britain traditionally accepted limited military arrangements against specific dangers or informal ententes based on parallel interests. It did not want an open-ended continental alliance. Germany, by contrast, demanded a formal “continental-type” guarantee. This was more than Britain was prepared to give and more than Germany needed. Kissinger stresses that Germany did not require Britain to fight at its side; it needed only British benevolent neutrality in a continental war. An entente-style understanding could have served that goal.
German leaders instead offered to defend the British Empire in exchange for sweeping commitments from Britain. This offer increased British suspicion by suggesting that Germany wanted a global alignment that would magnify German power. German impatience deepened the problem. Salisbury noticed that after Bismarck’s departure, German diplomacy had become easier to deal with in manner and poorer in penetration.
Domestic politics in Germany made restraint harder. Nationalist pressure groups, supported by elements of the industrial and professional classes, treated diplomacy as a contest of pride. They demanded colonies, naval expansion, territorial gains, and a harder line in every dispute. In Britain and France, nationalism was channeled through parliamentary institutions. In Germany, nationalist agitation operated through extra-parliamentary pressure on a weak government. Even an autocratic system could be highly sensitive to public opinion when leaders feared being accused of humiliation.
The Krüger Telegram of 1896 showed the destructive force of this climate. After the failed Jameson Raid into the Boer Transvaal, German opinion demanded that Britain be humiliated. William II congratulated President Paul Krüger for repelling outside attack, a gesture that appeared to challenge Britain in a region it regarded as within its own sphere. Kissinger treats the telegram less as a coherent colonial policy than as a public-relations stunt. It satisfied German nationalist feeling but damaged the prospect of an Anglo-German alliance for years.
The naval question turned irritation into strategic conflict. Germany began building a large fleet under pressure from “navalist” groups composed of industrial and naval interests. No issue was more likely to turn Britain against Germany than a challenge to command of the seas. Germany already possessed Europe’s strongest army; if it also sought naval parity with Britain, British leaders would inevitably ask whether Germany aimed at a position no other state could safely tolerate. The naval program gave Britain a direct reason to reconsider its historic priorities.
There were still attempts at cooperation. Joseph Chamberlain favored a “Teutonic” alliance among Britain, Germany, and the United States. Lord Lansdowne, who succeeded Salisbury at the Foreign Office, also believed Britain could no longer rely on splendid isolation. Yet the British Cabinet would go only as far as an entente-style arrangement, and Germany again rejected the attainable for the unattainable. Chancellor Bülow wanted British adherence to the Triple Alliance and used the naval program as leverage. Salisbury rejected the demand. Kissinger emphasizes the irony: the arrangement Britain offered Germany was similar to the one France later accepted, and that informal formula proved enough to create moral and military ties that mattered in 1914.
Britain then found a different partner in Japan. The Anglo-Japanese alliance of 1902 allowed Britain to contain Russia in the Far East without entangling itself on the Russo-German frontier. It was a major departure from the old Concert, with Britain seeking help outside Europe. That external solution also reduced Britain’s need for Germany. Over time, Germany shifted in British eyes from possible partner to strategic threat.
Even in 1912, the Haldane Mission showed that an Anglo-German settlement remained conceivable. Britain offered benevolent neutrality if either side became involved in a war in which it could not be called the aggressor. The Kaiser demanded neutrality in language that London feared could cover a German preemptive war against France or Russia. Germany rejected the British formula, the naval bill went forward, and another chance failed.
The Ententes and Germany’s Tests of Strength
Germany’s conduct pushed Britain toward France. In 1903, Britain began settling colonial disputes with France, and in 1904 the Entente Cordiale was concluded. Formally, it was a colonial settlement. Practically, it associated Britain with one side of the European division and undermined its role as detached balancer. French diplomacy succeeded partly by accepting ambiguity. France understood that consultation, habit, and moral obligation could matter in a crisis even without a legal British military commitment.
Germany tried to break the Entente by testing it in Morocco. In 1905, William II landed at Tangier and declared support for Moroccan independence, where French ambitions violated earlier agreements and German commercial interests existed. German leaders expected diplomatic support from the United States and its European partners. They assumed Russia was weakened by war with Japan and hoped Britain would shrink from backing France. Each assumption proved wrong: fear of Germany outweighed other interests.
The first Moroccan crisis became a German diplomatic defeat. Britain backed France, Austria and Italy avoided the brink, and Germany settled for a conference at Algeciras in 1906 after threatening more than it was prepared to execute. Kissinger notes that a state diminishes the credibility of its threats when it threatens war and then accepts a conference months later. At Algeciras, the United States, Italy, Russia, and Britain refused to support Germany. Instead of weakening the Entente, Germany strengthened it. After the crisis, Britain and France began military and naval consultations, with Britain maintaining its legal disclaimer while France accepted the practical value of staff talks.
The next step was the Anglo-Russian Entente of 1907. Like the Anglo-French agreement, it began as a colonial settlement. Russia’s defeat by Japan reduced its Far Eastern ambitions, making compromise with Britain easier. Britain offered generous terms in Persia and Afghanistan: Persia was divided into northern Russian, neutral central, and southern British spheres, while Afghanistan fell within the British sphere. The significance was larger than the colonial details. To secure Russian cooperation, Britain was prepared to relax its old determination to keep Russia out of the Straits. Germany’s pressure had caused Britain to treat Germany, rather than Russia, as the greater danger.
Kissinger gives special importance to the Crowe Memorandum of 1907 for stating the British strategic case against Germany with unusual clarity. Sir Eyre Crowe argued that Germany’s intentions mattered less than its capabilities and conduct. Whether Germany consciously sought hegemony or merely pursued commerce, culture, and influence around the world, the result could still be intolerable if the same state combined Europe’s greatest army with a navy capable of threatening Britain. Germany’s undefined global challenges in South Africa, Morocco, and the Near East made its policy seem unlimited, while French and Russian disputes with Britain were at least definable and therefore negotiable.
By 1909, Foreign Secretary Edward Grey rejected a German proposal that Britain remain neutral in a German war against France and Russia in exchange for a slowdown in naval construction. Grey argued that such neutrality would help Germany establish hegemony in Europe and eventually turn the continent against Britain. After the formation of the Triple Entente, the earlier Anglo-German diplomatic game became a struggle between a status quo power and a power demanding a change in the equilibrium. With flexibility gone, changes in the balance could come only through more armaments or war.
Bosnia, Agadir, and the Tightening of the Blocs
Even after the Triple Entente formed, Kissinger insists that war was not inevitable in a simple mechanical sense. Few issues truly justified a general war. Britain and Russia would not fight merely to recover Alsace-Lorraine for France, and Germany was unlikely in calm circumstances to back an Austrian war of aggression in the Balkans. A policy of restraint might have allowed the unnatural coalition of Britain, France, and Russia to loosen over time. Instead, each crisis became a test of alliance cohesion, and each German challenge tightened the Entente.
The Bosnian crisis of 1908 showed how a local Balkan issue could humiliate a Great Power and poison the system. Bosnia-Herzegovina had been placed under Austrian administration while remaining under Ottoman suzerainty after the Congress of Berlin. Its religiously and nationally mixed population made sovereignty explosive. Austria had long avoided outright annexation: it did not want more Slavic subjects, and the arrangement had worked despite its ambiguity. In 1908, fearing Serbian agitation and seeking a demonstration of strength, Austria annexed Bosnia-Herzegovina.
Russia was outraged, especially over the territory’s connection to the results of a Russian war against the Ottoman Empire. Russia was still weakened after defeat by Japan, and Britain and France remained unwilling to fight over a Balkan question. Germany backed Austria firmly and demanded Russian and Serbian recognition of the annexation. Russia had to yield. Kissinger stresses that humiliating a Great Power without weakening it is dangerous. Germany thought it had taught Russia the price of opposing German-backed Austria. Russia learned instead that it had to avoid being caught unprepared again.
The crisis placed Germany directly in Russia’s path in an area where Germany had no vital interest and where Bismarck had once moderated Austria. It also repeated a historical mistake: Russia had never forgiven Austria’s hostile stance after the Crimean War, and now Germany joined Austria in imposing another humiliation. Kissinger describes the subsequent diplomacy as a game of chicken, with states repeatedly racing toward confrontation and taking each previous escape as proof that the game was safe. The danger was that one failure to veer away would be catastrophic.
Germany next challenged France in the second Moroccan crisis of 1911. When French troops entered Fez during unrest, Germany sent the gunboat Panther to Agadir. German nationalist opinion celebrated decisive action and urged the government to risk war if necessary. Yet once again German objectives were unclear. Berlin wanted to intimidate France and remained unable to decide whether it sought a Moroccan port, part of the Atlantic coast, colonial compensation elsewhere, or merely prestige.
Britain backed France more firmly than it had in 1906. David Lloyd George, known for pacific instincts and support for better relations with Germany, warned publicly that peace purchased at the price of national humiliation would be intolerable. Austria itself refused to stake its survival on a North African adventure. Germany backed down and accepted a large but strategically poor tract in Central Africa. German critics complained that the empire had risked world war for poor Central African compensation. Kissinger argues that the real problem was deeper: Germany repeatedly threatened war without defining a political objective worth the risk.
After Agadir, Anglo-French military cooperation became more concrete. In 1912, the three Entente powers began military staff talks, formally hedged by British disclaimers. The same year, the Anglo-French Naval Treaty moved the French fleet to the Mediterranean while Britain assumed responsibility for defending the French Atlantic coast. In 1914, this arrangement would be cited as a moral reason for Britain to enter the war, with France having left its Channel coast exposed in reliance on British protection.
Constantinople and the Final Alienation of Russia
In 1913, Germany further alienated Russia through another ill-judged move, this time involving the Ottoman Empire. Germany agreed to reorganize the Turkish army and send a German general to command at Constantinople. William II made the gesture more provocative by speaking as if German flags might soon fly over the Bosphorus. For Russia, few actions could have been more alarming. The Straits were central to southern Russia’s economic and strategic life, and Russia had reluctantly accepted their control by a weak Ottoman state. It would not accept domination of the Dardanelles by another Great Power.
Russian Foreign Minister Sergei Sazonov told the tsar that surrendering the Straits to a powerful state would subordinate southern Russia’s economic development to that state. Nicholas II warned that if Germany tried to acquire a position enabling it to close Russia inside the Black Sea, Russia would resist even at the risk of war. Germany eventually found a face-saving way to remove the commander from direct control by promoting him, but the political damage remained. Russia concluded that German support for Austria in Bosnia had not been an exception. The Kaiser himself declared in February 1914 that Russo-Prussian relations were dead and that the two countries had become enemies. Six months later, war began.
The final danger also lay in the way alliances changed the incentives of each member. The prewar system was more volatile than the Cold War: any member of either coalition could start a crisis and force its partners to support it. In the nuclear age, only the United States and Soviet Union possessed the means to launch a general catastrophe, and neither could safely delegate such power to allies. Before 1914, smaller or weaker partners could pull stronger allies toward confrontation.
For a time, the alliances still restrained their members. France held Russia back over Balkan disputes, Germany warned Austria that support had limits, and Britain pressured Russia and Serbia during the Balkan conflicts. At the London Conference of 1913, Britain helped block Serbia’s annexation of Albania, which Austria would not tolerate. Yet that conference was the last effective act of prewar crisis management. Serbia resented insufficient Russian support, Russia resented British impartiality and French caution, Austria resented insufficient German backing, and the major allies all feared losing partners if they seemed unreliable in the next crisis.
Afterward, alliance maintenance became an end in itself. Germany accepted the risk of world war to preserve Austria’s confidence over South Slav issues in which Germany had little direct national interest. Russia risked a fight with Germany to prove loyalty to Serbia. France, under Raymond Poincaré, signaled that if Russia went to war in the Balkans, France would follow with Germany standing behind Austria. British officials worried that excessive ambiguity might drive Russia toward Germany. In 1913, the Kaiser promised Austria support in the next crisis, and in July 1914 the German chancellor explained that pressing Austria forward or holding it back both carried dangers, since too little support might make Germany lose its last ally.
Kissinger’s concluding judgment is that the leaders of Europe failed to align means with ends. They possessed modern weapons, mass armies, mobilization systems, and interlocking coalitions while still expecting a short and decisive war. They did not understand that alliances without rational political objectives could destroy the civilization they were meant to protect. The Concert of Europe had depended on moderation, flexibility, and the capacity to separate local disputes from general war. By 1914, each alliance had too much prestige invested to allow that diplomacy to work. The doomsday machine had been built through a long sequence of misread fears, undefined ambitions, public posturing, and commitments made to preserve alliances that had ceased to serve a rational political purpose.
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