Map overlay documenting the activities of the US Naval operations, Japanese ships, and cargo ships from July 19, 1945. The overlay contains annotations regarding Japanese submarines I-14, I-47, I-53, I-58, I-159, I-367, I-373, I-400, I-401, HA-108, and HA-202, hospital ship Hikawa Maru, picket boat Ebisu Maru, auxiliary netlayer Harukawa Maru, transport Nikkyu Maru, Tug #1, coastal defense vessels Yashiro and Kanju, Commander Picket Boat Division, and unknown type ships Yamada Maru, Kyudo Maru, Kako Maru, Minei Maru, and Kaiyo, United States Commander Task Forces 37, 38, 39, and 95, Task Groups 30.8 and 35.4, Commander of the 3rd Fleet, Commander of the 5th Air Force, Commanding General of the Pacific Ocean Areas, and IJN Radio in Guam. Significant events visible on the map include Commander of the 3rd Fleet ordering Task Force 37 and 38 to start heading to replenish, Commander Task Force 39 sweeping area Juneau - July and August, and IJN Radio in Guam reporting a predicted storm on 1944.