operation meetinghouse was a bombing attack by the united states against japan on the night between the 9th and 10th of march 1945. american bombers dropped firebombs without a specific target on the japanese city of tokyo. these firebombs created a huge firestorm which killed over 100,000 people and destroyed the homes of about 1 million more people. it is notable for being the most deadly attack from the air in world history. the attack was a change in strategy for the united states, which had previously only attacked from the air during the day, focusing on specific buildings.