HMS Hermes was a British aircraft carrier built for the Royal Navy and was the world's first ship to be designed as an aircraft carrier, although the Imperial Japanese Navy's Hōshō was the first to be launched and commissioned. The ship's construction began during the First World War but not completed until after the end of the war, delayed by multiple changes in her design after she was laid down. After she was launched, the Armstrong Whitworth shipyard which built her closed, and her fitting out was suspended. Most of the changes made were to optimise her design, in light of the results of experiments with operational carriers.
Myōkō (妙高) was the lead ship of the four-member Myōkō class of heavy cruisers of the Imperial Japanese Navy (IJN), which were active in World War II. She was named after Mount Myōkō in Niigata Prefecture. The other ships of the class were Nachi, Ashigara, and Haguro.
USS Stewart (DD-224) was a Clemson-class destroyer in the United States Navy during World War II. She was the second ship named for Rear Admiral Charles Stewart. Scuttled in port at Surabaya, Java, she was later raised by the Japanese and commissioned as Patrol Boat No. 102. She came back under American control in 1945 after the occupation of Japan.
Kuma (球磨) was a Kuma-class light cruiser in the Imperial Japanese Navy. The lead vessel of the five ship class, she was named after the Kuma River in Kumamoto prefecture, Japan.
The Insect-class gunboats were a class of small, but well-armed Royal Navy ships designed for use in shallow rivers or inshore. They were intended for use on the Danube against Austria-Hungary. The first four ships—Gnat, Mantis, Moth and Tarantula—were first employed during the Mesopotamian Campaign of the First World War on the Euphrates and Tigris rivers.
Inazuma was the twenty-fourth Fubuki-class destroyers, or the fourth of the Akatsuki class, built for the Imperial Japanese Navy in the inter-war period. When introduced into service, these ships were the most powerful destroyers in the world. They remained formidable weapons systems well into the Pacific War.
Isuzu (五十鈴) was the second of six vessels in the Nagara class of light cruisers, and like other vessels of her class, she was intended for use as the flagship of a destroyer flotilla. She was named after the Isuzu River, near Ise Shrine in the Chūbu region of Japan. She saw action during World War II in the Battle of Hong Kong and in the Solomon Islands campaign, and the Battle of Leyte Gulf before being sunk by American submarines in the Netherlands East Indies in April 1945.
Suma (須磨) was a protected cruiser of the Imperial Japanese Navy, designed and built by the Yokosuka Naval Arsenal in Japan. She was the lead ship in the Suma-class cruiser, and her sister ship was Akashi. The name Suma comes from a geographic location near Kobe, in Hyōgo Prefecture.
The two Suma-class cruisers were protected cruisers operated by the Imperial Japanese Navy. While more lightly armed and armored than many of its contemporaries, their small size and relatively simple design facilitated their construction and their relatively high speed made them useful for many military operations. Both participated in combat during the Russo-Japanese War and World War I.
The six Nagara-class light cruisers were a class of six light cruisers built for and operated by the Imperial Japanese Navy. The Nagara-class cruisers proved useful in combat operations ranging from the Aleutian Islands to the Indian Ocean throughout World War II. Most served as flagships for destroyer or submarine squadrons, and were deployed for transport or local defense missions. Towards the end of the war, the surviving vessels were increasingly obsolete and were retained as second-line units.
The first USS Luzon (PG-47) was laid down 20 November 1926 by the Kiangnan Dock and Engineering Works, Shanghai, China; launched 12 September 1927; sponsored by Miss Mary C. Carter, daughter of Commander Andrew F. Carter, USN; and commissioned 1 June 1928.
Harukaze was one of nine Kamikaze-class destroyers built for the Imperial Japanese Navy (IJN) during the 1920s. During the Pacific War, she participated in the Philippines Campaign in December 1941 and the Dutch East Indies Campaign in early 1942. She took part in the Battle of Sunda Strait in March and helped to sink two Allied cruisers.
Saga (嵯峨) was a river gunboat of the Imperial Japanese Navy, that operated on the Yangtze River and in coastal waters of China during the 1930s, and during the Second Sino-Japanese War and World War II.
Fushimi (伏見) was a river gunboat of the Imperial Japanese Navy, that operated on the Yangtze River in China during the 1940s, and during the Second Sino-Japanese War and World War II.
HMS Thracian was an S-class destroyer built for the Royal Navy during the First World War.
Kuroshio Maru was a tanker that was built in 1938 for Japanese owners. She was chartered by the Imperial Japanese Navy and Imperial Japanese Army during World War II: the ship was sunk in January 1945 at Takao, Formosa by American aircraft. Salvaged in 1946, she was allocated as a war prize to China and renamed Yung Hao, but was forced to remain at Hong Kong by the British. She was requisitioned by the Admiralty during the Korean War and allocated to the Royal Fleet Auxiliary. She was to have been named RFA Surf Pilot but due to her poor condition she did not serve in the Royal Fleet Auxiliary. She served as Surf Pilot, a tender to HMS Terror until 1958 and was subsequently scuttled off Pulau Aur, Malaya in 1960.
The United States Army Air Forces and United States Navy conducted numerous air raids against Japanese-occupied Hong Kong and shipping near the city during World War II. The Royal Australian Air Force took part in efforts to lay naval mines in the Hong Kong area. These attacks began in 1942. In 1945 it was incorporated into the larger South China Sea raid. British Pacific Fleet aircraft also attacked Japanese suicide boats at Hong Kong as part of the reoccupation of the colony in late August 1945.
Gyoun Maru was an auxiliary transport of the Imperial Japanese Navy during World War II.
Kamikaze Maru No. 7 was a wood-hulled schooner that served as an auxiliary salvage and repair ship of the Imperial Japanese Navy during World War II.
HMSCicala was a Royal Navy Insect-class gunboat. She was built in 1915 for shallow water work, possibly on the Danube or in the Baltic Sea during the First World War. Cicala was deployed to the Baltic for the 1918–19 British campaign against the Russian Bolsheviks. Whilst there her crew mutinied and refused to follow orders to attack a Russian shore battery. The mutiny was quelled when Admiral John Green threatened to open fire on the Cicala; five men were sentenced to imprisonment by court-martial over the matter. Cicala afterwards served on the China station, acting against pirates. She was at Hong Kong when the Japanese invaded in 1941 and provided fire support for the unsuccessful British defence. On 21 December 1941 she was struck by Japanese bombs and was afterwards scuttled.
United Kingdom
Empire of Japan 
