Map overlay documenting the activities of the US Naval operations, Japanese ships, and cargo ships from July 23, 1945. The overlay contains annotations regarding Japanese submarines I-13, I-47, I-58, I-159, I-353, I-367, I-373, I-400, I-401, HA-202, and HA-205, Convoy SEDA-5, escort Yashiro, aircraft carrier Hosho, hospital ship Hikawa Maru, tanker Kinyu Maru, transport Mishima Maru, IJN Radio in Guam, unknown type of ships Kaiho Maru, Kamatsu Maru, and Kaiyo, USS Thornback (SS-418), USS Maurice J. Manuel (DE-351), Liberty Ship Grace R Hebard, Task Force 38, 39, and 95, Commander of 7th Fleet, Commander of the Pacific Ocean Areas, Commander of the 20th Air Force, Commander Destroyer Squadron 61, Commander Fleet of Air Wing 4, Task Group 96.9, United Kingdom Commander in Chief British East Indies. Significant events visible on the map include Japanese submarines I-47 and I-367 patrolling on lines Marianas and Okinawa, Japanese submarines I-58 and I-353 patrolling area, Task Force 95 operating NW to SE, Task Force 39 sweeping area Juneau - July and August, Commander 7th fleet sinking 1 IJN subchaser, 1 steamer, and exploding 1 tug, Task Force 38 meeting with Destroyer Squadron 61 and launching attack, Commander Destroyer Squadron 61 conducting anti-shipping sweep and rejoining Task Force 38, IJN Radio in Guam reporting a storm heading east on 1944, Commander Fleet Air Wing 4 dropping bombs, Task group 96.9 conducting area sweeping operations, Japanese submarine sinking on July 16, 1945.