American missions against Yokohama
April 18, 1942–May 29, 1945

April 18, 1942
During the "Doolittle Raid" led by Lieutenant Colonel J. H. Doolittle, sixteen B-25's launched from USS Hornet (CV-8) carry out the first bombing mission against the Japanese mainland including targets in Tokyo, Kobe, Yokohama and Nagoya.

November 29, 1944
2 B-29s bomb Yokohama on the night of 29/30.

May 29, 1945
Mission 186: 454 B-29s, escorted by 101 P-51s from the VII Fighter Command for the first time on a fire-bomb raid, bomb Yokohama with incendiaries and destroy the main business district (a third of the city's area) along the waterfront; the burned out area of Yokohama now amounts to almost 9 square miles; about 150 Japanese fighters attack the formations; the B-29s claim 6 fighters and the P-51s claim 26-9-23: 7 B-29s and 3 P-51s are lost.