U-505 is a German Type IXC submarine built for Germany's Kriegsmarine during World War II. She was captured by the U.S. Navy on 4 June 1944.
USS Boarfish (SS-327), a Balao-class submarine, was a ship of the United States Navy named for the boarfish, a fish having a projecting hog-like snout.
USS Guitarro (SS-363), a Gato-class submarine, was the first ship of the United States Navy to be named for the guitarro.
USS John D. Ford (DD-228/AG-119) was a Clemson-class destroyer in the United States Navy during World War II. She was named for Rear Admiral John Donaldson Ford.
German submarine U-333 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. The submarine was laid down on 11 March 1940 at the Nordseewerke yard at Emden, launched on 14 June 1941, and commissioned on 25 August 1941 under the command of Kapitänleutnant Peter-Erich Cremer. After training with the 5th U-boat Flotilla at Kiel, on 1 January 1942 U-333 was transferred to the 3rd U-boat Flotilla based at La Pallice for front-line service.
HMS Graph was a German Type VIIC U-boat that the British Royal Navy captured during World War II. Commissioned as U-570 in Nazi Germany's Kriegsmarine in mid-1941, she was attacked and captured on her first patrol.
I-8 was an Imperial Japanese Navy Junsen III -type submarine commissioned in 1938 that served during World War II. Designed as submarine aircraft carriers, I-8 and her sister ship I-7 were the largest Japanese submarines to be completed before the outbreak of the war in the Pacific in 1941. With embarked floatplanes, I-8 participated in operations related to the attack on Pearl Harbor, patrolled off the United States West Coast, and took part in the Guadalcanal campaign and the Okinawa campaign.
USS Isabel (SP-521), later PY-10, was a yacht in commission in the United States Navy as a destroyer from 1917 to 1920 and as a patrol yacht from 1921 to 1946.
HMS Aylmer was a Captain-class frigate of the Royal Navy that served during World War II. The ship was named after Matthew Aylmer, commander of HMS Royal Katherine at the Battle of Barfleur in 1692 during the War of the Grand Alliance.
The Battle of the Caribbean refers to a naval campaign waged during World War II that was part of the Battle of the Atlantic, from 1941 to 1945. German U-boats and Italian submarines attempted to disrupt the Allied supply of oil and other material. They sank shipping in the Caribbean Sea and the Gulf of Mexico and attacked coastal targets in the Antilles. Improved Allied anti-submarine warfare eventually drove the Axis submarines out of the Caribbean region.
HNLMS Zwaardvisch (S814) was the lead ship of the Royal Netherlands Navy's Zwaardvisch-class submarine, which was based on the British T class. The submarine was originally ordered as HMS Talent (P322) and built by Vickers Armstrong, Barrow, and John Brown & Company, Clydebank. It served mainly in the Pacific against the Japanese during the war, operating under both British and US operational command in Ceylon and Australia. In 1950, the vessel was renamed HNLMS Zwaardvis. She was sold and broken up for scrap in 1963.
Vice Admiral Sir Arthur Richard Hezlet, nicknamed Baldy Hezlet, was a decorated Royal Navy submariner. He became the Royal Navy's youngest captain at the time – aged 36 – and its youngest admiral, aged 45. In retirement he became a military historian.
Ralph Waldo Christie was an admiral in the United States Navy who played a pivotal role in the development of torpedo technologies. During World War II, he commanded submarine operations out of the Australian ports of Brisbane and Fremantle.
German submarine U-168 was a Type IXC/40 U-boat of Nazi Germany's Kriegsmarine built for service during World War II. Her keel was laid down on 15 March 1941 by the Deutsche Schiff- und Maschinenbau AG in Bremen as yard number 707. She was launched on 5 March 1942 and commissioned on 10 September with Kapitänleutnant Helmuth Pich in command.
German submarine U-111 was a Type IXB U-boat of Nazi Germany's Kriegsmarine during World War II.
I-10 was an Imperial Japanese Navy Type A1 submarine that served during World War II. Designed as a submarine aircraft carrier, she was commissioned in 1941 and supported the attack on Pearl Harbor, operated in the Indian Ocean — including support for the 1942 midget submarine attack on Diego Suarez — and in the New Caledonia and New Zealand areas, and took part in the Guadalcanal campaign and Marianas campaign before she was sunk in 1944 during her seventh war patrol.
The action of 23 April 1945 was a submarine engagement of World War II that occurred in the Java Sea between Nazi Germany and the United States. It resulted in the last sinking of a German U-boat in Asian waters during the Pacific War and was one of only a few actions of the theater involving German forces.
United States Navy operations during World War I began on April 6, 1917, after the formal declaration of war on the German Empire. The American navy focused on countering enemy U-boats in the Atlantic Ocean and the Mediterranean Sea, while convoying men and supplies to France and Italy. Because of United States' late entry into the war, her capital ships never engaged the German fleet, and few decisive submarine actions occurred.
The Japanese submarine I-55, later redesignated I-155, was a Kaidai-class cruiser submarine of the KD3A sub-class built for the Imperial Japanese Navy (IJN) during the 1920s. She saw service throughout World War II.
Ro-115 was an Imperial Japanese Navy Ro-100-class submarine. Completed and commissioned in November 1943, she served in World War II, operating in the central Pacific Ocean, the New Guinea campaign, the Indian Ocean, and off the Philippine Islands. She was sunk in February 1945 during her fifth war patrol.
Netherlands 
Nazi Germany 
Helmuth Pich (POW)