From Casablanca to Potsdam: The Conferences That Shaped the Post-War

As millions of soldiers fought on the front lines, the true fate of the world was being determined at those tense diplomatic tables stretching from Casablanca to Yalta and from Tehran to Potsdam. If you are ready, we are stepping behind the scenes of those historic conferences where the seeds of peace (and the ensuing silent Cold War) were sown.

Casablanca Conference, January 14-24, 1943.

Casablanca Conference (January 1943)

The leaders of the US and Britain announced to the world that the war would only end with the “unconditional surrender” of Germany, Italy, and Japan. This uncompromising decision would later be criticized for prolonging the war. It was also decided to attack Italy (Sicily) to relieve pressure on the Soviets and to make preparations to draw Turkey into the war.

Washington and Quebec Conferences (May - August 1943)

The location of the second front was a massive point of contention. Although British Prime Minister Churchill insisted on opening the front in the Balkans via Turkey, the US successfully pushed for the front to be opened on the Normandy coast of France.

Tehran Conference (November 1943)

The “Big Three” (Roosevelt, Churchill, Stalin) met for the first time. The date for the Normandy Landings (May 1944) was finalized, and the necessity of a global organization to maintain post-war peace was approved at the highest level for the first time.

Chiang Kai-shek, Franklin D. Roosevelt, and Winston Churchill at the conference on 25 November 1943

Moscow and Cairo Conferences (October - November 1943)

In Moscow, the trial of war criminals (the foundation of the Nuremberg Trials) was decided, while in Cairo, the fate of the Far East, the expulsion of Japan from its colonies, and the independence of Korea were discussed.

Second Moscow Conference (October 1944)

One of the darkest bargains of the war took place here. Churchill and Stalin practically divided the Balkans into percentages on a piece of paper (e.g., Romania and Bulgaria were largely left to Soviet influence, while Greece was conceded to the British sphere).

The "Big Three" at the Yalta Conference, Winston Churchill, Franklin D. Roosevelt and Joseph Stalin.

Yalta Conference (February 1945)

It was decided to divide Germany into four occupation zones and to jointly administer Berlin. A condition was set for the soon-to-be-established United Nations (UN): those who declared war on the Axis powers by March 1, 1945, would become founding members. Following this strategic decision, Turkey symbolically declared war on Germany and Japan just shortly before the war ended.

San Francisco Conference (June 1945)

The United Nations was officially founded with the participation of 51 nations, including Turkey. The most critical decision was granting permanent “veto power” in the UN Security Council to the US, Britain, the USSR, China, and France.

Potsdam Conference (July - August 1945)

This was the final major gathering of the Allies. The focus was not on how to end the war, but on how to manage the peace. The complete eradication of Nazi institutions, the trial of war criminals, and the demilitarization of Germany were finalized.

Paris Peace Treaties (February 1947)

Symbolizing the legal end of the war, this series of treaties redrew the borders of the defeated nations (Italy, Hungary, Bulgaria, Romania, Finland). Under this framework, Italy was forced to cede Kastellorizo (Meis) and the Dodecanese Islands to Greece.

Canadian delegation at the Paris Peace Conference

But what was the ultimate toll of this six-year nightmare that forced humanity to pay the heaviest price it had ever seen? In the next stage of our series, we will examine the political, economic, and social consequences World War II left behind; and take a closer look at the United Nations, founded to protect global peace, along with its specialized agencies that continue to shape today’s world.