Thursday, 20 August 1942

US NAVY

PACIFIC—First USMC planes arrive at Henderson Field: aircraft escort vessel Long Island (AVG-1) ferries 19 F4Fs (VMF 223) and 12 SBDs (VMSB 232) to Guadalcanal. Although Japanese flying boat from the Shortlands sights Long Island, screened by light cruiser Helena (CL-50) and destroyers Aylwin (DD-355) and Dale (DD-353), the U.S. ships prove to be out of range of enemy land-based air and retire from the area without incident.

            Small seaplane tender Mackinac (AVP-13) is damaged when mistakenly bombed by SBDs (VS 71) from carrier Wasp (CV-7) off Ndeni Island.

ATLANTIC—PBY-5A (VP 73) sinks German submarine U-464, North Atlantic Area, 61°25'N, 14°40'W.

US ARMY AIR FORCE

EIGHTH AF—Principle of coordinated day and night bombing receive its first formal definition in ‘Joint British/American Directive on Day Bomber Operations involving Fighter Cooperation.’ Emphasis is placed on achieving continuity in bombing offensive from UK. 11 Heavy Bombers attack Longeau marshalling yard at Amiens, a vital point in the traffic flow between France and Germany.

ELEVENTH AF—1 B‑24 flies photo reconnaissance over Kiska. Patrol is flown over Shumagin Island.

ZONE OF THE INTERIOR—Twelfth AF is activated at Bolling Field.

US ARMY

UNITED STATES—Twelfth Air Force is activated at Bolling Field, Washington, D.C.

NEW HEBRIDES—Advanced supply depots are established at Noumea and Espiritu Santo.

GUADALCANAL—First planes (advance echelon of MAG 23, 1st Marine Air Wing) arrive for duty at Henderson Field. The group consists of VMF 223 (19 F4F–4’s) and VMSB 232 (12 SBD–3’s). Supply and evacuation between Guadalcanal and Espiritu Santo is begun by MAG 25. 1st Marine Division units along Ilu River exchange fire with enemy moving up from E, beginning in evening.

NEW GUINEA—Japanese order amphibious assault on Milne Bay by about 1,500 men from Kavieng, New Ireland, and from Buna.

USSR—German Army Group B makes slow progress toward Stalingrad against stubborn resistance and gains foothold across the Don in Kletskaya area. In the Caucasus, Soviet rear guards continue strong delaying action.

US MARINE CORPS

First Marine fighter aircraft arrive on Henderson Field, Guadalcanal.