THU 20 JUL 1944
All beach obstacles on Guam have been removed by underwater demolition teams: 640 on Asan beach and over 300 on Agat.
Submarine Cobia (SS-245) engages three-ship Japanese convoy northwest of Chichi Jima, sinking auxiliary submarine chasers No.3 Yusen Maru and No.2 Kaio Maru, 28°06'N, 141°32'E, and damaging cargo vessel Shoei Maru, but not before one of the escorts, however, rams Cobia, causing minor damage.
Saturday, July 20, 2019
by M. Bouffant at 19:44