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October 25–November 1, 1936
Nazi Germany and Fascist Italy sign a treaty of cooperation on October 25; on November 1, the Rome-Berlin Axis is announced. -
November 25, 1936
Nazi Germany and Imperial Japan sign the Anti-Comintern Pact, directed against the Soviet Union and the international Communist movement. -
September 29, 1938
Germany, Italy, Great Britain, and France sign the Munich agreement which forces the Czechoslovak Republic to cede the Sudetenland, including the key Czechoslovak military defense positions, to Nazi Germany. -
March 14–15, 1939
Under German pressure, the Slovaks declare their independence and form a Slovak Republic. The Germans occupy the rump Czech lands in violation of the Munich agreement, forming a Protectorate of Bohemia and Moravia. -
September 27–29, 1939
Warsaw surrenders on September 27. The Polish government flees into exile via Romania. Germany and the Soviet Union divide Poland between them. -
May 10, 1940–June 22, 1940
Germany attacks western Europe—France and the neutral Low Countries. Luxembourg is occupied on May 10; the Netherlands surrenders on May 14; and Belgium surrenders on May 28. On June 22, France signs an armistice agreement by which the Germans occupy the northern half of the country and the entire Atlantic coastline. In southern France, a collaborationist regime with its capital in Vichy is established. -
June 14, 1940–August 6, 1940
The Soviet Union occupies the Baltic States on June 14–18, engineering Communist coup d’états in each of them on July 14–15, and then annexing them as Soviet Republics on August 3–6. -
August 30, 1940
Second Vienna Award: Germany and Italy arbitrate a decision on the division of the disputed province of Transylvania between Romania and Hungary. The loss of northern Transylvania forces Romanian King Carol to abdicate in favor of his son, Michael, and brings to power a dictatorship under General Ion Antonescu. -
November 30, 1939–March 12, 1940
The Soviet Union invades Finland, initiating the so-called Winter War. The Finns sue for an armistice and have to cede the northern shores of Lake Lagoda and the small Finnish coastline on the Arctic Sea to the Soviet Union. -
April 10, 1941
The leaders of the terrorist Ustasa movement proclaim the so-called Independent State of Croatia. Recognized immediately by Germany and Italy, the new state includes the province of Bosnia-Herzegovina. Croatia joins the Axis powers formally on June 15, 1941. -
June 22, 1941–November 1941
Nazi Germany and its Axis partners (except Bulgaria) invade the Soviet Union. Finland, seeking redress for the territorial losses in the armistice concluding the Winter War, joins the Axis just before the invasion. The Germans quickly overrun the Baltic States and, joined by the Finns, lay siege to Leningrad (St. Petersburg) by September. In the center, the Germans capture Smolensk in early August and drive on Moscow by October. -
December 8, 1941
The United States declares war on Japan, entering World War II. Japanese troops land in the Philippines, French Indochina (Vietnam, Laos, Cambodia), and British Singapore. By April 1942, the Philippines, Indochina, and Singapore are under Japanese occupation. -
November 8, 1942
US and British troops land at several points on the beaches of Algeria and Morocco in French North Africa. The failure of the Vichy French troops to defend against the invasion enables the Allies to move swiftly to the western border of Tunisia, and triggers the German occupation of southern France on November 11. -
November 23, 1942–February 2, 1943
Soviet troops counterattack, breaking through the Hungarian and Romanian lines northwest and southwest of Stalingrad and trapping the German Sixth Army in the city. Forbidden by Hitler to retreat or try to break out of the Soviet ring, the survivors of the Sixth Army surrender on January 30 and February 2, 1943. -
July 5, 1943
The Germans launch a massive tank offensive near Kursk in the Soviet Union. The Soviets blunt the attack within a week and begin an offensive initiative of their own. -
September 8, 1943
The Badoglio government surrenders unconditionally to the Allies. The Germans immediately seize control of Rome and northern Italy, establishing a puppet Fascist regime under Mussolini, who is freed from imprisonment by German commandos on September 12. -
August 1, 1944–October 5, 1944
The non-communist underground Home Army rises up against the Germans in an effort to liberate Warsaw before the arrival of Soviet troops. The Soviet advance halts on the east bank of the Vistula. On October 5, the Germans accept the surrender of the remnants of the Home Army forces fighting in Warsaw. -
August 29, 1944–October 28, 1944
Under the leadership of the Slovak National Council, consisting of both Communists and non-Communists, underground Slovak resistance units rise against the Germans and the indigenous fascist Slovak regime. In late October, the Germans capture Banská Bystrica, the headquarters of the uprising, and put an end to organized resistance. -
December 16, 1944
The Germans launch a final offensive in the west, known as the Battle of the Bulge, in an attempt to re-conquer Belgium and split the Allied forces along the German border. By January 1, 1945, the Germans are in retreat. -
January 12, 1945
The Soviets launch a new offensive, liberating Warsaw and Krakow in January, capturing Budapest after a two-month siege on February 13, driving the Germans and their Hungarian collaborators out of Hungary in early April, forcing the surrender of Slovakia with the capture of Bratislava on April 4, and capturing Vienna on April 13. -
April 1945
Partisan units, led by Yugoslav Communist leader Josip Tito, capture Zagreb and topple the Ustasa regime. The top Ustasa leaders flee to Italy and Austria. -
April 30, 1945
Hitler commits suicide. -
September 2, 1945
Having agreed in principle to unconditional surrender on August 14, 1945, Japan formally surrenders, ending World War II.
