In the Solomon Islands... After the removal of the American aircraft carriers, a Japanese cruiser force, commanded by Admiral Mikawa enters the Sealark Channel south of Savo Island. The remaining American naval defenses, lead by Admiral Crutchley, have little experience of, or the equipment needed for, night fighting. The Americans lose four cruisers and sink none of the Japanese ships. Sealark Channel is later renamed Ironbottom Sound. The American transports unloading at Lunga Point are not attacked, however they are ordered to withdraw due to the threat and the 1st Marine Division is left short of heavy equipment and with only one half of their supplies.

On the Eastern Front... German Army Group A successes continue in the Caucasus: the German 1st Panzer Army captures Maikop, though Soviet forces destroy the oil installations, while German 17th Army takes Krasnodar.