1) What country declared war on the United States in 1941?
2) What was the bloodiest conflict in human history?
3) When did the First World War begin?
4) What was the name of the conflict between the Soviet Union and Afghanistan?
5) Who declared war on Germany after the invasion of Poland in 1939?
6) What was the name of the conflict between Iraq and a -led coalition in 2003?
7) What conflict is known as the "Spanish Civil War"?
8) What was the first major conflict of the 20th century?
9) What country was involved in the Boer Wars?
10) Who declared war on the United States after 9/11?