Twentieth Air Force B-29 Superfortresses fly a bombing and a mining mission during the night of 23/24 July; 1 B-29 is lost.

- Mission 282: 23 B-29s, staging through Iwo Jima, mine Shimonoseki Strait and the Korean coast at Najin (which is the longest B-29 combat mission of the war) and in the Pusan-Masan, Korea area; 1 B-29 is lost.

- Mission 283: 72 B-29s bomb the coal liquefaction company at the Imperial Fuel Industry Company at Ube, Japan.

- 100+ Iwo Jima Island-based P-51s hit airfields, rail installations, and other tactical targets at Itami, Hanshin, Sano, Tokushima, Takamatsu, and Minato, Japan.

NETHERLANDS EAST INDIES: Wing-Commander John Hampshire leads nine B-24s from 25 Squadron RAAF to attack Semarang in daylight. This was one of a series of raids with smoke that could be seen on the southern coast of Java. (Mike Mitchell)

CANADA: Corvette HMCS Frontenac paid off Halifax, Nova Scotia.

Corvette HMCS Camrose paid off Sydney, Nova Scotia.

Corvette HMCS Kamsack paid off Sorel, Province of Quebec.