World War II was the deadliest military conflict in history.An estimated total of 70–85 million people perished, which was about 3% of the 1940 world population (est. 2.3 billion). The tables below give a detailed country-by-country count of human losses.

World War II (WWII or WW2), also called the Second World War and, in the Soviet Union, the Great Patriotic War, and in Japan, the Second Sino-Japanese War, was a global war involving fighting in most of the world and most countries. Most countries fought in the years 1939–1945 but some started fighting in 1937.

World War II, or the Second World War (often abbreviated as WWII or WW2), was a global war that was under way by 1939 and ended in 1945.It involved a vast majority of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis.

The Soviet Union started and ended the war with more tanks than the rest of the world combined (18,000–22,000). At the start of World War II the most common tank in Soviet service was the T-26 (derived from the Vickers 6-ton), lightly armoured and armed with a 45 mm gun capable of penetrating most German tanks at normal combat ranges. Few had radios.

The Empire of Japan entered World War II by launching a surprise offensive which opened with the attack on Pearl Harbor at 7:48 a.m. Hawaiian Time (18:18 GMT) on December 7, 1941. Over the course of seven hours there were coordinated Japanese attacks on the U.S.-held Philippines, Guam and Wake Island and on the British Empire in Borneo, Malaya, Singapore, and Hong Kong.

World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945. The vast majority of the world's countries—including all the great powers—eventually formed two opposing military alliances: the Allies and the Axis.

Battle of Odžak was the last World War II battle in Europe. The battle began on 19 April 1945 and lasted until 25 May 1945, 17 days after the end of the war in Europe. Aftermath. This article needs additional citations for verification. Please ...

The Allies of World War II, called the United Nations from the 1 January 1942 declaration, were the countries that together opposed the Axis powers during the Second World War (1939–1945). The Allies promoted the alliance as a means to control German, Japanese and Italian aggression.

The term "World War I" was coined by Time magazine on page 28b of its June 12, 1939 issue. In the same article, on page 32, the term "World War II" was first used speculatively to describe the upcoming war. The first use for the actual war came in its issue of September 11, 1939.