Germany undertook several research programs relating to nuclear technology, including nuclear weapons and nuclear reactors, before and during World War...

During World War II, Japan had several programs exploring the use of nuclear fission for military technology, including nuclear reactors and nuclear weapons...

development of nuclear weapons in 1945 and their use by the United States in the atomic bombings of Hiroshima and Nagasaki at the end of World War II, the risk...

begins recruiting Jewish nuclear scientists and forming scientific institutes during war of independence for a nuclear weapons program. 1949 – Israeli scientists...

UNSC resolutions. The United States developed the first nuclear weapons during World War II in cooperation with the United Kingdom and Canada as part...

on 1 September 1939, starting World War II. The Soviets invaded eastern Poland on 17 September. Following the Winter War with Finland, the Soviets were...

Thailand officially adopted a neutral position during World War II until the five hour-long Japanese invasion of Thailand on 8 December 1941, which led...

amount to war crimes or crimes against humanity. This is a list of war crimes committed during World War II. The Axis powers (Nazi Germany, Fascist Italy...

Technology played a significant role in World War II. Some of the technologies used during the war were developed during the interwar years of the 1920s and...

War (1936–1939), and the Second Sino-Japanese War (1937–1945). Strategic bombing during World War II in Europe began on 1 September 1939 when Germany...

allies during the Cold War. During this same period, in addition to the American and Soviet nuclear stockpiles, other countries developed nuclear weapons...

The history of Cuba during World War II begins in 1939. Because of Cuba's geographical position at the entrance of the Gulf of Mexico, Havana's role as...

and a radar blackout. The first nuclear weapons were developed by the Allied Manhattan Project during World War II. Their production continues to require...

World War II was the deadliest military conflict in history. An estimated total of 70–85 million deaths were caused by the conflict, representing about...

campaigns, embargoes, and sports diplomacy. After the end of World War II in 1945, during which the US and USSR had been allies, the USSR installed satellite...

of quantum mechanics and a principal scientist in the German nuclear program during World War II. He published his Umdeutung paper in 1925, a major reinterpretation...

bombing of cities and delivery of the first and only nuclear weapons ever used in war. World War II is the deadliest conflict in history, causing the death...

of Japan, which occurred before any further nuclear weapons could be deployed. After World War II, nuclear weapons were also developed by the Soviet Union...

Japan participated in World War II from 1939 to 1945 as a member of the Axis. World War II and the Second Sino-Japanese War encapsulate a significant...

the outbreak of World War II in Europe in 1939, there was some significant collaborative development in heavy industry between German companies and their...

manufacture nuclear weapons and is the only country to have used them in combat, with the bombings of Hiroshima and Nagasaki in World War II against Japan...

authorized by Joseph Stalin in the Soviet Union to develop nuclear weapons during and after World War II. Russian physicist Georgy Flyorov suspected that the...

theaters of World War II and, together with anti-aircraft warfare, consumed a large fraction of the industrial output of the major powers. Germany and Japan...

During World War II, resistance movements operated in German-occupied Europe by a variety of means, ranging from non-cooperation to propaganda, hiding...

and Axis powers in World War II, which had evolved independently in a number of nations during the mid 1930s. At the outbreak of war in September 1939...

made during the 1930s, the United Kingdom began the world's first nuclear weapons research project, codenamed Tube Alloys, in 1941, during World War II. The...

scientist in the German nuclear program during World War II Weisswurstäquator, German for the White Sausage Equator. A humorous term used in Germany to describe...

television series which feature events of World War II in the narrative. List of World War II films List of World War II short films The deceased historical...

poisoned weapons" in warfare. During World War II, Germany conducted an unsuccessful project to develop nuclear weapons. German scientists also did research...

during World War II. The aerial bombings killed between 150,000 and 246,000 people, most of whom were civilians, and remain the only uses of nuclear weapons...