USS Underhill (DE-682) was a Buckley-class destroyer escort of the United States Navy during World War II. Built in 1943, she served in the Atlantic, the Mediterranean, and the Pacific until her sinking in a suicide attack by a Japanese Kaiten manned torpedo on 24 July 1945.
Kaiten were crewed torpedoes and suicide craft, used by the Imperial Japanese Navy in the final stages of World War II.
A submarine chaser or subchaser is a small naval vessel that is specifically intended for anti-submarine warfare. Many of the American submarine chasers used in World War I found their way to Allied nations by way of Lend-Lease in World War II.
USS PC-1136 was a PC-461-class submarine chaser built for the United States Navy during World War II. Shortly after the end of the war, she was renamed USS PCC-1136 when she was reclassified as a combat communications control ship. In 1956, she was renamed Galena (PC-1136), becoming the third U.S. Navy vessel so named, but never saw active service under that name.
USS PC-1137 was a PC-461-class submarine chaser built for the United States Navy during World War II. After World War II, the ship was renamed USS PCC-1137, reflecting her new role as a combat communications control ship. Later, in 1956, she was renamed Worthington (PC-1137) although she never saw active service under this name.
I-58 was a Japanese B3 type cruiser submarine that served in the final year of World War II. Her only significant wartime success came with a conventional torpedo attack upon USS Indianapolis on 30 July 1945. She was modified to carry Kaiten manned torpedoes, making several attacks that inflicted minor damage in exchange for every Kaiten launched being sunk. The submarine surrendered in September 1945, and was later scuttled by the United States Navy.
Mochitsura Hashimoto was a Japanese officer and a submarine commander in the Imperial Japanese Navy during World War II. He was captain of the submarine I-58, which sank the American heavy cruiser USS Indianapolis in 1945 after its delivery of parts and enriched uranium for the first atomic weapon used in wartime, Little Boy, prior to the attack on Hiroshima.
USS Zeus (ARB-4) was planned as a United States Navy LST-1-class tank landing ship, but was redesignated as one of twelve Aristaeus-class battle damage repair ships built for the United States Navy during World War II. Named for Zeus, she was the only US Naval vessel to bear the name.
USS SC-255, sometimes styled as either Submarine Chaser No. 255 or S.C.-255, was an SC-1-class submarine chaser built for the United States Navy during World War I. Like most members of her class, she was not named and known only by her designation.
USS SC-48, sometimes styled as either Submarine Chaser No. 48 or S.C.-48, was an SC-1-class submarine chaser built for the United States Navy during World War I. Like most members of her class, she was not named and known only by her designation.
Okinawa was an escort ship ("Kaibōkan") of the Imperial Japanese Navy during the Second World War. She belonged to the Ukuru class. The ship is most notable for its possible participation in the sinkings of two submarines.
The PCE-842-class patrol craft escort was a United States Navy (USN) ship class of submarine chasers designed during World War II. The PCE-842-class was the only class ever designated by the USN as the "patrol craft escort" (PCE) type. The PCE design was derived from the 180-foot (55 m) Admirable-class minesweeper to complement the 173-foot (53 m) PC-461-class submarine chasers that were used for anti-submarine warfare (ASW) in coastal areas. At 185 feet long and 640 tons, the PCE is more than twice the displacement of the PC but with a less powerful engine also much slower; however, because of its larger size, the PCE was able to undertake longer-range tasks over PC-461-class vessels. The USN envisaged the PCE as enabling PCs and smaller vessels to undertake coastal patrols without being called-upon as often to perform open ocean and convoy escort duties, while simultaneously freeing-up some larger vessels - such as destroyer escorts and destroyers - from convoy ASW duties. The PCE-482-class had a standard crew complement of 99 officers and men. The class would ultimately see 68 total vessels built, serving with multiple navies around the world.
The USS PC-598 was a 173ft metal hulled PC-461-class submarine chaser in the United States Navy. The submarine chaser fought in the Pacific Theatre during World War II, and was converted to an amphibious landing control vessel during the war, reclassified as a Patrol Craft-Control (PCC). It participated in six amphibious invasions as a control vessel during the war.
USS PC-552 was a class-461 patrol craft ("PC") that was at the forefront of the naval efforts during the Normandy invasion. It served as convoy protection in the North Atlantic and as one of about ten PC control vessels off Omaha Beach during the Normandy invasion. PC-552 was among the first ships to reach waters off Omaha Beach. PC-552, primary control vessel for Fox Green sector of the beach, was forced into rescue efforts and recovery of bodies at the departure line for Fox Green when the Duplex Drive tanks that survived the initial disastrous launch were swamped at the line with only two surviving. The PC was diverted into this effort for forty-five minutes and ultimately only five tanks, the two that survived the launch disaster and three that were aboard LCT-600 whose commander raised his ramp when the first off foundered and instead landed them on the beach, reached the beach.
USS Havre was a United States Navy PCE-842-class patrol craft escort in commission from 14 February 1944 to 1 July 1970. She served in the Central Pacific during World War II, supporting invasions of Battle of Iwo Jima and the Battle of Okinawa, and was present in Tokyo Bay for the formal Surrender of Japan on 2 September 1945. Unlike other ships from this class, which were scrapped or sold to other nations, the vessel stayed the property of the United States Navy, which transferred ownership to the United States Navy Reserve as Naval Reserve Training Ship for 9th Naval District (Chicago) in April 1954. She was renamed USS Havre (PCE-877) on 15 February 1956 as part of a Navy-wide initiative to provide names to all numbered ships. Havre served on the Great Lakes until struck from Navy List on 1 July 1970.
The second I-53 was the second of three Type C cruiser submarines of the C3 sub-class built for the Imperial Japanese Navy. Commissioned in February 1944, she operated primarily as a kaiten manned suicide attack torpedo carrier during the final year of World War II and sank the destroyer escort USS Underhill (DE-682). Surrendered at the end of the war, she was scuttled by the United States Navy in 1946.
USS PCE-872 was a PCE-842-class patrol craft for the United States Navy during World War II. She was renamed Caribe after being acquired by the Cuban Navy on 1 October 1947.
United States 
Japan 
Robert M. Newcomb † 
Saichi Oba 