Question: Akitsushima has been the name of two ships in a navy that was dissolved following what war?

Context paragraphs:
Battle-class destroyer: The Battle class were a class of destroyers of the British Royal Navy (RN) and Royal Australian Navy (RAN), named after naval or other battles fought by British or English forces.  Built in three groups, the first group were ordered under the 1942 naval estimates.  A modified second and third group, together with two ships of an extended design were planned for the 1943 and 1944 estimates.  Most of these ships were cancelled when it became apparent that the war was being won and the ships would not be required, although two ships of the third group, ordered for the RAN, were not cancelled and were subsequently completed in Australia.

Rhein-class monitor: The "Rhein" class of ironclad riverine monitors ("Flußkanonenboote") were a pair of ships built by the German Imperial Navy in the aftermath of the Franco-Prussian War.  The class comprised two ships, "Rhein" and "Mosel"; both were built by the AG Weser shipyard in Bremen, in 1872–1874.  They were armed with a pair of 12 cm bronze cannon in a revolving gun turret.  The ships were intended to protect the German border with France in the event of a conflict, but had short service lives, as war did not come.  They served briefly in the defenses of Coblenz, starting in 1875, before being withdrawn from service.  The two ships were sold for scrap, apparently in December 1884.

Imperial Japanese Navy: The Imperial Japanese Navy (IJN; Kyūjitai: 大日本帝國海軍 Shinjitai: 大日本帝国海軍 "   " or 日本海軍 "Nippon Kaigun", "Navy of the Greater Japanese Empire") was the navy of the Empire of Japan from 1868 until 1945, when it was dissolved following Japan's defeat and surrender in World War II.  It was controlled by the Imperial Japanese Navy General Staff and the Ministry of the Navy, both of which were nominally subordinate to the Emperor of Japan as supreme commander of the army and the navy.  The Japan Maritime Self-Defense Force (JMSDF) was formed after the dissolution of the IJN.

Lion-class battleship: The "Lion"-class battleships were a class of six fast battleships designed for the Royal Navy in the late 1930s.  They were a larger, improved version of the "King George V" class with 16 in guns.  Only two ships were laid down before the Second World War began in September 1939 and a third was ordered during the war, but their construction was suspended shortly afterwards.  Their design changed several times in response to the removal of treaty restrictions on size and in light of war experience.  None of the other ships planned were laid down, although there was a proposal to modify one of the suspended ships into a hybrid battleship/aircraft carrier with two 16-inch gun turrets and a flight deck.  The two ships already begun were scrapped after the end of the war.

Séduisant-class ship of the line: The "Séduisant" class was a "sub"-class of 74-gun ships of the line of the French Navy, comprising two ships built at Toulon Dockyard to a design by Joseph-Marie-Blaise Coulomb in the year immediately following the close of the American Revolutionary War.  In reality these two ships followed his design for the "Centaure" Class, but were completed with a length greater by 5¼ feet,and had also slightly less breadth and depth in hold.

Operation United Shield: Operation United Shield was the codename of a military operation, conducted 9 January to 3 March 1995, bringing a conclusion to the United Nations Operation in Somalia II (UNOSOM II).  Commanded by the United States, two ships of the Pakistan Navy, two ships of the Italian Navy and six ships of the United States Navy formed a Combined Task Force (CTF) ensuring the safe evacuation of all UN Peacekeeping Forces from Somalia.

C-class cruiser: The C class was a group of twenty-eight light cruisers of the Royal Navy, and were built in a sequence of seven groups known as the "Caroline" class (six ships), the "Calliope" class (two ships), the "Cambrian" class (four ships), the "Centaur" class (two ships), the "Caledon" class (four ships), the "Ceres" class (five ships) and the "Carlisle" class (five ships).  They were built for the rough conditions of the North Sea, and proved to be rugged and capable vessels, despite their being somewhat small and cramped.

Egyptian frigate Ibrahim: Ibrahim was a steam frigate built for the Egyptian Navy, and launched on November 30, 1868 at La Seyne.  The ship was fully rigged and had an iron hull.  At the time Egypt had also ordered several armored ironclads, the "Nijmi Shevket" class and the "Lutfi Djelil" class each of two ships.  Although intended for the Egyptian Navy, these ironclads were delivered to the Ottoman Navy in 1869.  In this period Egypt was nominally a province of the Ottoman Empire but was run autonomously (with increasing influence of French and British interests culminating in a British takeover in 1882).  Egypt was apparently allowed to keep the large frigate "Ibrahim", which with the smaller frigate "Mehemet Ali" and one corvette the "Sakka" formed the Egyptian steam navy until 1890, when the "Ibrahim" was scrapped and the other two ships had their machinery removed to become stationary guard ships at Alexandria and Port Said.  Egypt also had a large iron yacht, the "Mahroussa" which survives in rebuilt form to the present day.

Akitsushima: Two ships of the Imperial Japanese Navy have been named Akitsushima, the ancient name for Japan:

Kirov-class cruiser: The "Kirov"-class (Project 26) cruisers were a class of six cruisers built in the late 1930s for the Soviet Navy.  After the first two ships, armor protection was increased and subsequent ships are sometimes called the "Maxim Gorky" class.  These were the first large ships built by the Soviets from the keel up after the Russian Civil War, and they were derived from the  , being designed with assistance from the Italian Ansaldo company.  Two ships each were deployed in the Black and Baltic Seas during World War II, while the last pair was still under construction in the Russian Far East and saw no combat during the war.  The first four ships bombarded Axis troops and facilities after the Germans invaded the Soviet Union in June 1941.  All six ships survived the war and lingered until the 1970s in training and other secondary roles before being scrapped.

Supporting paragraphs: Akitsushima Imperial Japanese Navy
Answer: World War II