| 12 Jan | Allied troops attack Monte Cassino, Italy. |
| 14 Jan | Soviet troops begin an offensive against Finland. |
| 15 Jan | Soviet troops begin a counter-offensive at Leningrad. |
| 16 Jan | Dwight D Eisenhower named commander of the allied forces. |
| 22 Jan | The allies land at Anzio, Italy. |
| 27 Jan | The german siege of Leningrad is lifted. |
| 6 Feb | Soviet troops begin an large offensive in the Ukraine. |
| 6 Feb | Kwajalein is captured by the allies. |
| 12 Feb | Finland discuss peaceterms with the soviet ambassador to Stockholm. |
| 21 Feb | Hideki Tojo becomes military dictator in Japan. |
| 22 Feb | Soviet Union bombs Stockholm, Sweden. |
| 26 Feb | Soviet Union preforms massive bombraids on Helsinki. |
| 19 Mar | German troops occupy Hungary. |
| 10 Apr | Soviet troops recapture Odessa. |
| 19 Apr | Japanese troops capture Zhengzhou, China. |
| 1 May | Japanese troops capture Xuchang, China. |
| 9 May | Soviet troops recapture Sevastopol. |
| 12 May | Germans surrender in the Crimea. |
| 18 May | Allied troops capture Monte Cassino. |
| 25 May | Japanese troops capture Luoyang, China. |
| 4 June | The allies capture Rome. |
| 6 June | D-Day. The allies land in Normandy. |
| 9 June | Soviet troops begin a large offensive against Finland. |
| 13 June | First german V-1 bomb is launched on Britain. |
| 20 June | Soviet troops capture Viborg, Finland. |
| 21 June | Finland sues for peace. |
| 22 June | Soviet Union demands unconditional surrender. |
| 27 June | American troops capture Cherburg. |
| 3 July | Soviet troops recapture Minsk. |
| 7 July | The japanese troops on Saipan surrender. |
| 9 July | The allies capture Caen. |
| 19 July | General Kuniaka Koiso becomes the new Prime Minister of Japan. |
| 20 July |
A failed assination attempt on Hitler is preformed by Claus von Stauffenberg. |
| 21 July | American troops land on Guam. |
| 25 July | The breakout from Normandy begins. |
| 28 July | Soviet troops recapture Brest-Litovsk. |
| 1 Aug | Polish Home Army uprising in Warsaw and the Red Army halts its offensive. |
| 2 Aug | Soviet troops reach the Baltic Sea coast in Latvia. |
| 4 Aug | The allies capture Florence. |
| 8 Aug | Japanese troops capture Hengyang, China. |
| 15 Aug | The allies land in south France. |
| 20 Aug | Soviet troops begin offensive against Romania. |
| 23 Aug | Romania surrenders and joins the allies. |
| 24 Aug | Bordeaux is captured by the allies. |
| 25 Aug | Paris is captured by the allies. |
| 28 Aug | The allies capture Marseille and Toulon. |
| 30 Aug | The german troops leave Bulgaria. |
| 31 Aug | Soviet troops capture Bucharest. |
| 2 Sep | The allies capture Pisa. |
| 3 Sep | The german troops leave Finland. |
| 3 Sep | Brussels and Antwerpen are captured by the allies. |
| 5 Sep | Truce between Finland and Soviet Union. |
| 5 Sep | Soviet Union declares war on Bulgaria. |
| 8 Sep | First german V-2 bomb is launched on Britain. |
| 9 Sep | Treuce between Soviet Union and Bulgaria. |
| 11 Sep | Allied troops enter Germany. |
| 12 Sep | Le Havre is captured by the allies. |
| 15 Sep | German troops land on Suursaari but are forced to surrender. |
| 17 Sep | Massive allied airborne assault in Arnhem, Holland (Operation Market Garden). |
| 22 Sep | Boulogne is captured by the allies. |
| 24 Sep | Soviet troops enter Czechoslovakia. |
| 26 Sep | Estonia is occupeid på the soviet forces. |
| 26 Sep | The last allies surrender in Arnhem. |
| 28 Sep | Calais is captured by the allies. |
| 28 Sep | The first battle between german and finnish troops at Pudasjärvi. |
| 1 Oct | Soviet troops enter Yugoslavia. |
| 2 Oct | The Warsaw uprising is put down. |
| 4 Oct | The allies land in Greece. |
| 10 Oct | Rovaniemi is destroyed by the german troops. |
| 14 Oct | Athens is captured by the allies. |
| 14 Oct | Erwin Rommel commits suiced rather than face trail for the part in the conspiracy against Hitler . |
| 18 Oct | Soviet troops enter Czechoslovakia. |
| 20 Oct | Belgrade is captured by the allies. |
| 21 Oct | The allies capture Aachen (first german city). |
| 23 Oct | Soviet troops enter East Prussia. |
| 25 Oct | Soviet troops capture Kirkenes, Norge. |
| 4 Nov | The axis troops in Greece surrenders. |
| 10 Nov | Japanese troops capture Guilin, China. |
| 10 Nov | Japanese troops capture Liuzhou, China. |
| 24 Nov | Strasbourg is captured by the allies. |
| 29 Nov | Albania is captured by the allies. |
| 4 Dec | Civil war begin in Greece. |
| 16 Dec | German troops begin offensive in the Ardennes (battle of the Bulge). |
| 26 Dec | American troops hold Bastogne and the german offensive fails. |
| 27 Dec | Soviet troops besiege Budapest. |