Probably "last surface action of World War II"

TUE 21 AUG 1945
Pacific
Two Chinese junks (Lieutenant Livingston Swentzel Jr., USNR) manned by 7 Americans and 20 Chinese guerrillas are attacked by Japanese junk (with a crew of 83 men) while en route from Haimen to Shanghai, China. In a 45-minute action, the Chinese craft, directed by Lieutenant Swentzel, engage the enemy with bazookas, machine guns, and grenades. Upon boarding the Japanese craft, the Allied force finds 45 dead and 35 wounded; the victory has been achieved at the cost of four Chinese killed, and one American and five Chinese wounded. For his heroism above and beyond the call of duty, Lieutenant Swentzel is awarded the Navy Cross in what probably proves to be the last surface action of World War II.

Japanese escort vessel Miyake is damaged by mine near Moji, Japan, 33°58'N, 131°00'E.

Tenth Army security patrols on Okinawa by this point have captured 69 Japanese and killed 218 since the island is declared secure.

Asiatic Wing, Naval Air Transport Service, is established at Oakland California.