The Vietnam war was a war from 1960 to 1975 in Vietnam. It was fought between North Vietnam(the Soviet Union and China) and South Vietnam(the United States).
The United States fought with a prestige. But North Vietnam won the war. The United States had to withdraw from Vietnam.
The United States army was killed more than 58000 people by this war. South Vietnam people was killed near 2 million people.
The feature of this war was it has not front line of war. The United States army feared, lost a military strength and declined a moral.
A nuclear arm is a weapon which explodes by nuclear fission or fusion. It is also also known as an atomic bomb.
Atomic bomb is a fission type weapon, which was used to attack Japanese cities Nagasaki and Hiroshima. On the other, hydrogen bomb is a fusion type bomb.
Today, 7 countries have nuclear arms: USA, Russia, United Kingdom, France, China – these countries were WW II allies. India and Pakistan also have it. In addition, North Korea , Israel and Iran may have it.
Nuclear arms are very powerful and dangerous weapons. And the risk of nuclear war increases as weapon are developed.
