The Second World War instal the new for android

Japan, which aimed to dominate Asia and the Pacific, was at war with the Republic of China by 1937. On 22 June 1941, Germany led the European Axis powers in an invasion of the Soviet Union, opening the Eastern Front, the largest land theatre of war in history. Following the onset of campaigns in North Africa and East Africa, and the fall of France in mid-1940, the war continued primarily between the European Axis powers and the British Empire, with war in the Balkans, the aerial Battle of Britain, the Blitz of the United Kingdom, and the Battle of the Atlantic. From late 1939 to early 1941, in a series of campaigns and treaties, Germany conquered or controlled much of continental Europe, in a military alliance with Italy, Japan and other countries called the Axis. Under the Molotov–Ribbentrop Pact of August 1939, Germany and the Soviet Union had partitioned Poland and marked out their ' spheres of influence' across Finland, Estonia, Latvia, Lithuania and Romania.

The United Kingdom and France subsequently declared war on Germany on 3 September. World War II is generally considered to have begun on 1 September 1939, when Nazi Germany, under Adolf Hitler, invaded Poland. The causes of World War II are debated, but contributing factors included the Second Italo-Ethiopian War, Spanish Civil War, Second Sino-Japanese War, Soviet–Japanese border conflicts, the rise of fascism in Europe, and European tensions in the aftermath of World War I. In the wake of Axis defeat, Germany, Austria and Japan were occupied, and war crimes tribunals were conducted against German and Japanese leaders.

Tens of millions died due to genocides (including the Holocaust), starvation, massacres, and disease. World War II was by far the deadliest conflict in history, resulting in an estimated 70 to 85 million fatalities, mostly among civilians.

Aircraft played a major role, enabling the strategic bombing of population centres and the delivery of the only two nuclear weapons ever used in war. Many participants threw their economic, industrial, and scientific capabilities behind this total war, blurring the distinction between civilian and military resources. The vast majority of the world's countries, including all of the great powers, fought as part of two opposing military alliances: the Allies and the Axis.

World War II or the Second World War, often abbreviated as WWII or WW2, was a global conflict that lasted from 1939 to 1945.

The Second World War instal the new for android