The uneasy negotiations between the United States and Iran are unfolding under the shadow of a long historical truth: great-power systems rarely collapse in a single dramatic moment. They erode. They drift. They unravel—through hesitation, miscalculation, and the quiet accumulation of small crises that go unanswered until answering them becomes catastrophic.

The European descent into war in the 1930s remains the starkest example of how incremental provocations, when met with divided or delayed responses, can push nations toward a confrontation none of them originally sought. As the historian A.J.P. Taylor observed, WWII was a war that no one willed, planned, or wanted. Yet it came anyway, because those with the power to stop it chose ambiguity over clarity at every critical juncture.

The comparison with today is not moral. Iran is not Nazi Germany, and the multipolar world of 2026 is not the shattered post-Versailles order. But the incremental escalation and the seductive trap of strategic ambiguity echo with unsettling clarity.

The 1930s: A study in calibrated provocation

When Hitler came to power in 1933, he did not plunge Europe into war. He probed it. Step by step, test by test, each gamble bolder than the last and advanced because he was permitted to advance.

In 1936, German troops marched into the demilitarized Rhineland—a zone the Treaty of Versailles had explicitly forbidden them to enter. Hitler’s own generals warned him that Germany was unprepared for war; he reportedly told them to reverse course if France intervened. France did not intervene. Britain expressed concern. The gamble paid off.

In 1938, the Anschluss of Austria was carried out without resistance. The Sudetenland crisis ended at Munich with Neville Chamberlain’s infamous “peace for our time.”                By 1939, the dismantling of all Czechoslovakia revealed the truth that the historian Ian Kershaw would later crystallize: appeasement did not buy peace. It bought momentum.

By September 1939, when........

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