Question

After the attack on Pearl Harbor, the U.S. entered WWII.After the 9/11 attack, a war on terror was announced. What did the two attacks have in common?

Answer 1

The United States entered World War II, The attacks on Pearl harbor was in '41, the 9/11 Attacks were in '01, the similarity was about Terrorism, threatening the United States.

Answer 2

The difference was that the United States was not taking any action against the attackers before the attacks, but after them, they got involved in fighting against them.