December 7th: Japan launches a surprise attack against the Soviet Pacific Fleet anchored at Vladivostok. Not all ships were anchored that day. However, the attack was conducted more for the purpose of lowering Soviet morale more than anything. America continues their isolationist policies.
December 8th: Japan declares war on the Soviet Union. Later that day, The Japanese send an invasion force into the Soviet Far East. OTL attacks on Malaya and Thailand commence as well. The Philippines are not invaded, and the Japanese plan to keep the US out of the war. The USSR is forced to order troops to the East to combat the Japanese threat.
December 17th: Vladivostok falls to the Japanese.
December 19th: The Japanese capture Khabarovsk.
January 3rd: The whole of the island of Sakhalin is captured by the Japanese.
January 7th: German troops are driven away from Moscow, as the Soviets begin reconquering lost territory.
February 15th: Singapore falls to the Japanese. They continue expansion in the south.
February 24th: German and Finnish troops successfully capture the strategic port of Murmansk. Most supplies must now go through Arkhangelsk, a longer route which gives the Kreigsmarine more advantages to disrupt their supply lines.
May 7th: The Germans begin Case Blue, an advance in the south to capture the vital resources in the Caucasus.
May 8th: the Japanese are victorious in the Battle of the Coral Sea. They continue their move southward towards Australia, not intending to invade the country, but to isolate it.
November 8th: Operation Torch begins, as a two-pronged assault against Vichy-occupied French West Africa. one attack comes through French Equitorial Africa, while the other is a seaborne assault through Morocco. they also hope to link up with the Eighth army advancing west into Libya.
November 9th: German troops begin building up forces in Tunisia.
November 20th: Germans reach the Caspian Sea. the city of Stalingrad is bypassed in order to find a more suitable crossing of the Volga. Intense fighting begins in Astrakhan.
December 9th: German troops link up with Finnish troops around Lake Ladoga, effectively cutting off Leningrad from all supplies. A Soviet pocket is left in Novya Ladoga.
January 25th: German troops are forced to pull out from Astrakhan. Unable to cross the Volga, the Soviets counterattack from Stalingrad and Astrakhan.
January 30th: The Japanese advance into the Soviet Far East is halted around Okhotsk.
February 12th: Soviet forces attack the Germans around Lake Ladoga from the East, and cut a swath to Novya Ladoga, so supplies can be delivered to Leningrad. The supplies come too late for many.
February 14th: Forces participating in Operation Torch link up in Tamanrasset, Algeria.
March 2nd: Franklin Delano Roosevelt is assassinated by a disheartened man who felt that the New Deal policies were not helping the country. In fact, the country was recovering from the depression, but incredibly slowly, so that at times it seemed as though no recovery was ongoing. Henry A. Wallace is inaugurated president. He continues policies similar to FDR, though Wallace is nowhere near as popular as Roosevelt.
July 4th: The largest tank battle of the war, the Battle of Kharkov occurs, ending in a Soviet victory.
September 6th: The Japanese invasion of New Guinea ends in victory for the Japanese. With troops tied up in the Soviet Far east, the Japanese are unable to continue military operations in the south.
November 16th: British forces begin engaging the Germans in Tunisia.
January 31st: British troops claim victory at the Battle of the Kassarine Pass.
February 22nd: The British invasion of Sicily begins.
November 1st: The British begin an offensive in Burma.