ATLANTIC: Operation Drumbeat continues as German submarines sink two U.S. merchant vessels in the Atlantic. U-128 sinks and unarmed freighter east of Trinidad while U-153 sinks an armed freighter east of Puerto Rico.
USA: In the U.S, the Federal Bureau of Investigation (FBI) announces the capture of eight the German saboteurs who had been put ashore from submarines. The first group of four had landed at Amagansett, Long Island, New York, on the night of 13 June; the second group of four had landed on Ponte Vedra Beach, south of Jacksonville, Florida, on 17 June.
Two of the spies had turned themselves in to the FBI resulting in the roundup of the other six. They were to be charged as enemy soldiers and tried by military court martial but the US Army-appointed lawyer, Colonel Kenneth Royall, appealed to the U.S. Supreme Court for a writ of habeas corpus. The Supreme Court met on 29 July, the first special session since 1920, to decide if President Roosevelt had the authority to deny the eight German spies a civil trial; on 31 July, the court ruled against the Germans and the military tribunal resumed on 3 August. The six spies who had not reported to the FBI were found guilty and sentenced to death and they were executed in the electric chair at the District of Columbia jail on 8 August.
GERMANY: Marshal Mannerheim returns Hitler's visit to his 75th birthday, arriving today for a two-day visit to Germany. He meets Hitler and attends a Wehrmacht situation conference. Later Mannerheim meets his old friend Reichmarschall Goering, in whose manor he spends the night.
EGYPT: Mersa Matruh: Pte. Adam Herbert Wakenshaw (b.1914), Durham Light Infantry had an arm blown off but fired his anti-tank gun until killed by a direct hit. (Victoria Cross)