article_snippet.sent: The Doolittle Raid, also known as the Tokyo Raid, on April 18, 1942, caused negligible material damage to Japan .
article_snippet.sent: The Doolittle Raid boosted American morale in the wake of Japan's attack on Pearl Harbor on December 7, 1941 .
article_snippet.sent: The Doolittle Raid, also known as the Tokyo Raid, on 18 April 1942, was an air raid by the United States during World War II.
article_snippet.sent: an air raid by the United States during World War II, caused negligible material damage to Japan, but helped to boost a wounded nation's morale in the aftermath of Japan's attack on Pearl Harbor on 7 December 1941.