The answer to the question above is the bombing of a hotel in Yemen.
The bombing of a hotel in Yemen was the first example of Osama Bin Laden attacking America. Known as the 1992 Yemen Hotel Bombings, Osama Bin Laden carried out the bombing to target the American troops that was staying in Gold Mohur Hotel. They targeted a second hotel when they found out that they already left when the bomb exploded.
Britain, France, and the U.S. embraced the policy of appeasement because they believed that if they appeased Hitler’s demands, he would stop any future pursuits of territories.