What caused ww2 to start?

What caused ww2 to start?

Hitler had long planned an invasion of Poland, a nation to which Great Britain and France had guaranteed military support if it were attacked by Germany. On September 1, 1939, Hitler invaded Poland from the west; two days later, France and Britain declared war on Germany, beginning World War II.

Who was responsible for Second World War?

World War II, also called Second World War, conflict that involved virtually every part of the world during the years 1939–45. The principal belligerents were the Axis powers—Germany, Italy, and Japan—and the Allies—France, Great Britain, the United States, the Soviet Union, and, to a lesser extent, China.

Who did the US nuke?

On August 6, 1945, the United States becomes the first and only nation to use atomic weaponry during wartime when it drops an atomic bomb on the Japanese city of Hiroshima. Approximately 80,000 people are killed as a direct result of the blast, and another 35,000 are injured.

Did the US nuke the moon?

The project was never carried out, being cancelled after “Air Force officials decided its risks outweighed its benefits”, and because a Moon landing would undoubtedly be a more popular achievement in the eyes of the American and international public alike.

What country has the most nukes?

Countries with the most nuclear weapons | US is not number 1, China adds 30 warheads within a year

• No 3 | Country: China | Number of nuclear weapons: 320 (Image: Reuters)
• No 2 | Country: US | Number of nuclear weapons: 5,800 (Image: Reuters)
• No 1 | Country: Russia | Number of nuclear weapons: 6,375 (Image: Reuters)

Can the US president fire nuclear weapons?

The United States has a two-man rule in place at nuclear launch facilities, and while only the president can order the release of nuclear weapons, the order must be verified by the secretary of defense to be an authentic order given by the president (there is a hierarchy of succession in the event that the president is …

How far away from a nuke is safe?

six feet

Whats stronger than a nuclear bomb?

But a hydrogen bomb has the potential to be 1,000 times more powerful than an atomic bomb, according to several nuclear experts. The U.S. witnessed the magnitude of a hydrogen bomb when it tested one within the country in 1954, the New York Times reported.

Can nuclear bombs destroy the world?

They are considered the most destructive weapons in the world – their explosions are so powerful, just one nuclear bomb could destroy an entire city. Nukes, as nuclear weapons are known, are far more damaging than even the biggest normal, non-nuclear bombs.

Can a bomb cause a tsunami?

The tests revealed that a single explosion would not produce a tsunami, but concluded that a line of 2,000,000 kg (4,400,000 lb) of explosives about 8 km (5.0 mi) off the coast could create a destructive wave.

Why did 2004 tsunami kill so many?

According to USGS scientists, the sea floor near the earthquake was uplifted several meters. The displacement of water above the sea floor triggered the tsunami, which caused catastrophic levels of destruction in countries around the Indian Ocean basin, reaching as far as the east coast of Africa.