March 11, 1941 - President Roosevelt signs the Lend-Lease Act.
Aug 1, 1941 - United States announces an oil embargo against aggressor states.
Sept 1, 1941 - Nazis order Jews to wear yellow stars.
Dec 7, 1941 - Japanese bomb Pearl Harbor.
Dec 8, 1941 - United States and Britain declare war on Japan.
Dec 10, 1941 - Japanese invade the Philippines and also seize Guam
Dec 11, 1941 - Germany declares war on the United States.
Dec 22, 1941 - Japanese invade Luzon in the Philippines.
Dec 23, 1941 - Gen. MacArthur begins withdrawal from Manila to Bataan; Japanese take Wake Island.
Dec 25, 1941 - British surrender at Hong Kong.
Jan 1, 1942 - Declaration of the United Nations signed by 26 Allied nations.
Jan 13, 1942 - Germans begin a U-boat offensive along east coast of USA.
Jan 20, 1942 - SS Leader Heydrich holds the Wannsee Conference to coordinate the "Final Solution of the Jewish Question."
Jan 26, 1942 - First American forces arrive in Great Britain.
Feb 22, 1942 - President Roosevelt orders Gen. MacArthur out of the Philippines.
March 11, 1942 - Gen. MacArthur leaves Corregidor and is flown to Australia. Gen. Jonathan Wainwright becomes the new U.S. commander.
March 18, 1942 - War Relocation Authority established in the U.S. which eventually will round up 120,000 Japanese-Americans and transport them to barb-wired relocation centers. Despite the internment, over 17,000 Japanese-Americans sign up and fight for the U.S. in World War II in Europe, including the 442nd Regimental Combat Team, the most decorated unit in U.S. history.
In April - Japanese-Americans sent to relocation centers.
April 9, 1942 - U.S. forces on Bataan surrender unconditionally to the Japanese.
April 10, 1942 - Bataan Death March begins as 76,000 Allied POWs including 12,000 Americans are forced to walk 60 miles under a blazing sun without food or water toward a new POW camp, resulting in over 5,000 American deaths.
April 18, 1942 - Surprise U.S. "Doolittle" B-25 air raid from the HORNET against Tokyo boosts Allied morale.
April 23, 1942 - German air raids begin against cathedral cities in Britain.
May 6, 1942 - Japanese take Corregidor as Gen. Wainwright unconditionally surrenders all U.S. and Filipino forces in the Philippines.
May 7-8, 1942 - Japan suffers its first defeat of the war during the Battle of the Coral Sea off New Guinea - the first time in history that two opposing carrier forces fought only using aircraft without the opposing ships ever sighting each other.
May 8, 1942 - German summer offensive begins in the Crimea.
May 12, 1942 - The last U.S. troops holding out in the Philippines surrender on Mindanao.
In June - Mass murder of Jews by gassing begins at Auschwitz.
June 4-5, 1942 - Turning point in the war occurs with a decisive victory for the U.S. against Japan in the Battle of Midway. Squadrons of U.S. torpedo planes and dive-bombers from ENTERPRISE, HORNET, and YORKTOWN attack and destroy four Japanese carriers, a cruiser, and damage another cruiser and two destroyers. U.S. loses YORKTOWN.
June 25, 1942 - Eisenhower arrives in London.
July 9, 1942 - Germans begin a drive toward Stalingrad in the USSR.
July 22, 1942 - First deportations from the Warsaw Ghetto to concentration camps; Treblinka extermination camp opened.
Aug 7, 1942 - The first U.S. amphibious landing of the Pacific War occurs as 1st Marine Division invades Tulagi and Guadalcanal in the Solomon Islands.
Aug 17, 1942 - First all-American air attack in Europe.
Sept 13, 1942 - Battle of Stalingrad begins.
Nov 8, 1942 - Operation Torch begins (U.S. invasion of North Africa).
Nov 19, 1942 - Soviet counter-offensive at Stalingrad begins.
Dec 2, 1942 - Professor Enrico Fermi sets up an atomic reactor, conducts the worlds first nuclear chain reaction test at the University of Chicago.
Dec 17, 1942 - British Foreign Secretary Eden tells the British House of Commons of mass executions of Jews by Nazis; U.S. declares those crimes will be avenged.
Jan 10, 1943 - Soviets begin an offensive against the Germans in Stalingrad.
Jan 14-24 - Casablanca conference between Churchill and Roosevelt. During the conference, Roosevelt announces the war can end only with an unconditional German surrender.
Jan 27, 1943 - First bombing raid by Americans on Germany (at Wilhelmshaven).
Feb 1, 1943 - Japanese begin evacuation of Guadalcanal.
Feb 2, 1943 - Germans surrender at Stalingrad in the first big defeat of Hitler's armies.
Feb 14-25 - Battle of Kasserine Pass between the U.S. 1st Armored Division and German Panzers in North Africa.
April 6/7 - Axis forces in Tunisia begin a withdrawal toward Enfidaville as American and British forces link.
May 7, 1943 - Allies take Tunisia.
May 13, 1943 - German and Italian troops surrender in North Africa.
July 9/10 - Allies land in Sicily.
July 19, 1943 - Allies bomb Rome.
July 22, 1943 - Americans capture Palermo, Sicily.
July 25/26 - Mussolini arrested and the Italian Fascist government falls; Marshal Pietro Badoglio takes over and negotiates with Allies.
Sept 8, 1943 - Italian surrender is announced.
Sept 9, 1943 - Allied landings at Salerno and Taranto.
Sept 11, 1943 - Germans occupy Rome.
Sept 12, 1943 - Germans rescue Mussolini.
Oct 1, 1943 - Allies enter Naples, Italy.
Oct 13, 1943 - Italy declares war on Germany;
Nov 1, 1943 - U.S. Marines invade Bougainville in the Solomon Islands.
Nov 28, 1943 - Roosevelt, Churchill, Stalin meet at Teheran.
Jan 6, 1944 - Soviet troops advance into Poland.
Jan 17, 1944 - First attack toward Cassino, Italy.
Jan 22, 1944 - Allies land at Anzio.
Jan 27, 1944 - Leningrad relieved after a 900-day siege.
Jan 31, 1944 - U.S. troops invade Kwajalein in the Marshall Islands.
Feb 1-7, 1944 - U.S. troops capture Kwajalein and Majura Atolls in the Marshall Islands.
Feb 16, 1944 - Germans counter-attack against the Anzio beachhead.
June 5, 1944 - Allies enter Rome.