Sep 1 - Germany invades Poland, World War 2 begins.
Sep 3 - Britain and France declare war on Germany.
Sep 8 - The US remains neutral but president Roosevelt declares "limited national emergency".
Sep 17 - Russia invades Poland
Sep 27 - Warsaw surrenders
Oct 6 - The last remaining Polish forces surrender
Nov 30 - Russia invades Finland
Jan 17 - The first German Enigma messages are decoded by British intelligence
Mar 12 - Russia-Finland war ends. It convinces Hitler that the Russian military is ineffective.
Apr 8 - Germany invades Denmark and Norway.
Apr 14 - British forces land in Narvik, Norway, but leave in 10 days
May 10 - Germany invades France, Holland, Belgium, Luxemburg. Winston Churchill becomes Britain's prime minister.
May 20 - German forces reach the British Channel.
May 27 - Evacuation of British and French forces to Britain at Dunkirk begins.
Jun 4 - The evacuation at Dunkirk ends. 338,000 troops were rescued. Churchill declares that Britain will never surrender.
Jun 9- Norway surrenders
Jun 10 - Italy declares war on the collapsing France and on Britain.
Jun 14 - German troops march into Paris
Jun 18 - Russia invades Lithuania, Latvia, and Estonia.
Jun 22 - France surrenders
Jun 27 - Russia annexes the eastern regions of Romania.
Jul 1 - Germany invades the British Channel islands.
Jul 10 - The Battle of Britain air campaign begins.
Jul 18 - Churchill declares this is Britain's finest hour.
Aug 8 - The Luftwaffe begins to bomb British early warning radars
Aug 15 - The Royal Air Force loses 76 aircraft in one day
Aug 25 - British night bombers bomb Berlin
Sep 13 - Italy invades British-held Egypt from Libya, the North African campaign begins.
Sep 15 - The largest Luftwaffe daytime bombardment, the Royal Air Force loses an additional 112 aircraft
Sep 27 - Japan joins The Axis
Oct 7 - German troops enter their Ally Romania, Germany's only source of oil which is threatened by Russia
Oct 12 - Hitler gives commands ordering the commencement of Operation Sea Lion
Oct 23 - Spain rejects Hitler's offer to join the war and remains neutral.
Oct 28 - Italy invades Greece from Albania, but stopped, twice.
Nov 11 - British carrier aircraft sink Italian fleet in Taranto's harbor. Yamamoto in Japan is impressed by their success.
Nov 20 - Hungary and Romania, both military dictatorships, join The Axis.
Dec 9 - British forces in Egypt counter attack the Italians and advance along the Libyan coast
Feb 12 - Hitler sends Rommel and the Afrika Korps to help the Italians in North Africa
Mar 1 - Bulgaria joins The Axis. The Axis-Russian border now stretch from the Baltic sea to the black sea.
Mar 3 - Rommel attacks the British forces in North Africa.
Mar 5 - British troops arrive at Greece to support it.
Apr 6 - Germany invades Yugoslavia and Greece
Apr 13 - After military clashes, Japan and Russia sign non-aggression pact.
Apr 17 - Yugoslavia surrenders. British forces evacuate Greek mainland to Crete
Apr 27 - German troops occupy Athens
May 20 - German paratroopers and airborne troops invade Crete by air
May 31 - British forces in Crete surrender.
Jun 8 - British forces aided by Israeli volunteers invade French controlled Syria and Lebanon
Jun 22 - Germany invades Russia. Hitler cancels his 'maximum cruelty' strategy after talks with his generals.
Jul 3 - Stalin orders the "scorched earth" strategy.
Jul 16 - German army group "Center" takes Smolensk, just 220 miles from Moscow.
Jul 21 - The Luftwaffe bombs Moscow
Jul 24 - Japan invades French Indochina (Vietnam, Laos, Cambodia)
Jul 31 - Hermann Göring is killed when a bomb explodes beneath his car.
Sep 15 - The long German siege of Leningrad begins.
Sep 18 - The Germans in the South occupy Kiev and reach the Crimea.
Oct 2 - German forward units in Moscow advance on the Kremlin.
Oct 4 - German infantry captures the Kremlin
Oct 16 - Soviet Premier Molotov is captured
Oct 17 - General Tojo becomes Japan's prime minister
Oct 26 - The Soviet government officially sets up temporary capital in Nvgorad
Dec 7 - The Japanese Navy attacks Pearl Harbor and the Philippines, and the US joins the war.
Jan 2 - Japanese forces occupy Manila
Jan 10 - Japanese forces invades Indonesia
Jan 11 - Japanese forces occupy Malaysia
Jan 12 - Japanese forces invade Burma
Jan 13 - German U-boats begin to sink ships along the US East coast.
Jan 21 - Rommel begins another offensive in North Africa.
Jan 25 - Japanese forces invade the Solomon Islands.
Jan 26 - US troops begin to arrive in Britain.
Feb 15 - Singapore surrenders to the Japanese.
Mar 20 - Relocation of Jews to Eastern Europe begins.
Apr 18 - Doolittle's raid - US bombers bomb Tokyo.
May 7 - Battle of the Coral Sea. One Japanese carrier and one American carrier are sunk.
May 6 - The last American troops in the Philippines surrender.
May 8 - The German spring offensive to head farther into Eastern Russia begins.
Jun 4 - The battle of Midway. Four Japanese carriers are sunk, and one American carrier. Japan's naval superiority is lost.
Jul 3 - Japanese forces land in Guadalcanal.
Jul 28 - Stalin forbids further Russian retreats, at any cost.
Aug 7 - US forces land in Guadalcanal.
Aug 13 - Montgomery becomes commander of the British 8th army in North Africa.
Aug 23 - The German 6th army reach Stalingrad, the battle of Stalingrad begins.
Sep 6 - The German advance in Stalingrad is stopped.
Sep 23 - The battle of El Alamein in North Africa begins.
Nov 8 - Allied forces land in western North Africa, at Rommel's back.
Nov 19 - The Russian flanking counter attack around Stalingrad begins.
Dec 19 - The Germans fail to break the encirclement of their army in Stalingrad.
Feb 2 - The last Soviet forces in Stalingrad surrender
May 13 - The long North Africa campaign ends. The Allies control North Africa
Jul 5 - The battle of Kursk begins
Jul 10 - The Allies invade Sicily. German troops pour into Italy, dampening Allied hopes of victory on the peninsula
Jul 25 - Mussolini is replaced and arrested.
Aug 10 - The Germans know the Enigma was decoded, but believe the new types and procedures are safe again.
Sep 3 - The Allies invade Italy's mainland
Sep 8 - Italy surrenders. The German forces in northern and central Italy occupy it
Sep 25 - The Russians liberate Smolensk
Oct - Allied anti submarine bases established in the Azores, in the middle of the Atlantic Ocean
Nov 6 - The Soviet Army faces mass revolts on the Eastern country
Nov 19 - The Marines land in Tarawa
Nov - Rommel takes command of the "atlantic wall" in the French coast
Jan 22 - Axis reinforcements swarm allied positions in Italy
Mar - The Soviet general Zukov is killed during During advances on Soviet positions
Apr 10 - The Germans begin aerial bombing of Nziv Nvgrod
May - Allied bombers begin to concentrate on the German fuel industry
Jun 6 - German forces begin the siege of Nvgrod
Jun 12 - 1st German V-1 cruise missile attack on Britain
Jun 15 - The U.S Marines land in Saipan
Jun 19 - Battle of the Philippine Sea
Jun 22 - The Whermacht captures Nziv Nvgorod
Jul 21 - Hitler appoints General Guderian to chief of the army (OKH). The Marines land in Guam
Jul 24 - The Marines land in Tinian
Jul 28 - The Russians reach the old German-Russian border in central Poland
Aug 1 - Warsaw revolts against the Germans
Aug 15 - The Allies land in southern France
Aug 23 - Romania surrenders to the Russians. Its oil fields were Germany's only source of natural oil
Aug - Royal Air Force aircraft finally drive the last German aircraft from British skies
Sep 6 - Finland and Bulgaria surrenders to the Russians
Sep 8 - 1st German V-2 ballistic missile attack on Britain
Oct 10 - The Germans continue to advance towards the Ural Mountains
Oct 20 - The Marines land in Leyte, in the Philippines. In response, the Japanese Navy begins to use Kamikaze suicide pilots.
Nov 14 - B-29 bombers begin to bomb Tokyo from bases in the Mariana islands
Jan 9 - The Marines land in Luzon in the Philippines
Jan 23 - The Germans finally end their Eastern advance at the Ural Mountains
Jan 27 - Negotiations between the Soviet Union's remnants and the Reich commence
Feb 13 - The Soviet Union and the Third Reich sign an unconditional cease fire
Feb 19 - The Marines land in Iwo Jima
Mar 4 - Manila is liberated
Mar 6 - With a stalemate on the western front debates begin in British parliament to seek peace with Germany
Mar 16 - The battle of Iwo Jima ends
Mar 27 - V-2 missile attacks end in an effort to influence British parliament
Apr 6 - The Marines land in Okinawa. Japan orders all its forces to use Kamikaze suicide tactic
Apr 7 - The super battleship Yamato is sunk on its way to a Kamikaze fight in Okinawa
Apr 12 - President Roosevelt dies.
Apr 16 - Soviet/German peace conditions are finalized
Apr 30 - Adolf Hitler commits suicide in his bunker in Berlin. He appoints Admiral Dönitz as his successor.
May 8 - Britain agrees to a formal cease fire with Germany
May 28 - 450 B-29 bombers bomb Yokohama
Jun 2 - 660 B-29 bombers bomb Japanese cities
Jun 21 - Battle of Okinawa ends
Jul 16 - The US tests the atomic bomb in New Mexico. It works.
Aug 6 - Hiroshima is destroyed by an atomic bomb
Aug 8 - Russia declares war on Japan
Aug 9 - Nagasaki is destroyed by an atomic bomb
Aug 14 - Japan surrenders. The Second Great War ends.