|The Combined Chiefs of Staff (CCS) issues a directive through the Chief of Air Staff (C/AS), Royal Air Force (RAF), marking the official beginning of the Combined Bomber Offensive (CBO) of the USAAF and RAF against sources of German war power. The RAF is to bomb strategic city areas at night and the USAAF is to hit precise targets by daylight. The CCS sanctions the Combined Operational Planning Committee as the agency for coordinating the efforts of the CBO forces.
HQ 386th Bombardment Group (Medium) and its 552d, 553d, 554th and 555th Bombardment Squadrons (Medium) with B-26s transfer from Snetterton Heath, England to Boxted, England. The group will fly its first combat mission on 30 Jul 43.
The detachments of the 416th Night Fighter Squadron, VIII Fighter Command at Cranfield, Usworth, and Bath, England return to their base at Honiley, England. The squadron is attached to the RAF for training on Beaufighters. The 417th Night Fighter Squadron, VIII Fighter Command transfers from Cranfield, England to Scorton, England. The detachments at Ayr, Scotland and Uxbridge, Coltishall and Bristol, England transfer to Scorton. The squadron is attached to the RAF for training on Beaufighters.