On June 28, 1919 — five years to the day after the assassination at Sarajevo — the German delegation signed the Treaty of Versailles in the Hall of Mirrors at the French royal palace, the same room where the German Empire had been proclaimed in 1871. The choice of place was itself a humiliation. The treaty stripped Germany of about thirteen percent of its territory and all its colonies, limited its army to a hundred thousand men with no tanks, aircraft, or general staff, demanded reparations eventually fixed at 132 billion gold marks, and required Germany to accept the war guilt clause (Article 231) as the moral basis for the financial obligation. The treaty was almost universally hated in Germany — and the British economist John Maynard Keynes, who had walked out of the conference as a Treasury official, wrote The Economic Consequences of the Peace arguing the settlement guaranteed another war.
The Versailles failure had multiple causes layered on each other. The demands were too harsh to leave Germany reconciled to the postwar order, yet too lenient to render it permanently incapable of revisionism — the worst of both worlds. The reparations regime was economically incoherent: Germany could only pay by exporting, but Allied tariffs blocked exactly those exports, so payment had to be financed by American loans that evaporated in 1929. The territorial losses — Alsace-Lorraine to France, the Polish Corridor severing East Prussia from the Reich, three million Sudeten Germans left inside the new Czechoslovakia — created irredentist grievances Hitler later harvested almost item by item. The League of Nations, Wilson's attempt at a permanent international order, was structurally crippled before it began: the U.S. Senate refused to ratify, so its author never joined, and Germany and the Soviet Union were excluded for years. By the early 1920s, German nationalists had a coherent and corrosive narrative: the war was lost by treason at home, the peace was a humiliation, the Republic that signed it was illegitimate. The Dolchstoßlegende — the stab-in-the-back myth — turned the politicians who had accepted reality into traitors and became a load-bearing beam of the Nazi worldview.
Bretton Woods (1944) and the postwar order were designed in conscious anti-Versailles — the U.S. would lead rather than retreat, Germany and Japan would be rebuilt and reintegrated rather than punished, and international institutions (the IMF, World Bank, UN, NATO) would be backed by the great powers rather than abandoned by them. The Marshall Plan was the deliberate inverse of reparations. The current debates over how to end the Russia-Ukraine war, how to handle a defeated revisionist power without breeding the next grievance, all run on the Versailles-versus-Bretton-Woods framework — the question of whether you crush a beaten enemy or co-opt it.