Sunday, May 31, 1942. Memorial Day Celebrations at Manzanar Internment Camp.

Lots of submarine action this day, including German submarines in the Atlantic, and a Soviet one, which sank a Turkish vessel, in the Black Sea, and a British one in the Mediterranean.

Perhaps the most interesting ones were the Japanese launch of a float plane from the I9 to survey damage from midget submarine raids on Diego Suarez Harbor in Madagascar.  Three Japanese midget submarines also tried to enter Sydney Harbor, with all three lost in the process.  One was caught in torpedo nets and scuttled by the crew, which went down with it, another by depth charges.  A third escaped but was abandoned, with the fate of its crew unknown.

The Luftwaffe bombed Canterbury in reprisal for the RAF bombing of Cologne.