Indian Marine was deployed to treat wounded soldiers. By the time the war ended in 1918, the Royal Indian Marine had transported or escorted 1,302,394 men, 172,815 animals and 3,691,836 tonnes of war stores. The Royal Indian Marine suffered 330 casualties and 80 of its personnel were decorated with gallantry awards for service in the war. The Royal Indian Marine played a vital role in supporting and transporting the Indian Army throughout the war. The first Indian to be granted a commission was Sub Lieutenant D.N Mukherji who joined the Royal Indian Marine as an engineer officer in 1928. The Royal Indian Navy in World War II In 1934 the Royal Indian Marine changed its name, with the enactment of the Indian Navy (Discipline) Act of 1934. The Royal Indian Navy was formally inaugurated on 2 October 1934, at Bombay. Its ships carried the prefix HMIS, for His Majesty's Indian Ship. At the start of the Second World War, the Royal Indian Navy was small, with only eight warships. The onset of the war led to an expansion in vessels and personnel described by one writer as "phenomenal". By 1943 the strength of the RIN had reached twenty thousand. During the War, the Women's Royal Indian Naval Service was established, for the first time giving women a role in the navy, although they did not serve on board its ships. During the course of the war six anti-aircraft sloops and several fleet minesweepers were built in the United Kingdom for the R.I.N. After commissioning, many of these ships joined various escort groups operating in the northern approaches to the British Isles. and , each armed with six-high angle 4" guns, were present during the Clyde "Blitz" of 1941 and assisted the defence of this area by providing anti-aircraft cover. For the next six months these two ships joined the Clyde Escort Force, operating in the Atlantic and later the Irish Sea Escort Force where they acted as the senior ships of the groups. While engaged on these duties, numerous attacks against U-boats were carried out and attacks by hostile aircraft repelled. At the time of action in which the Bismarck was involved, the Sutlej left Scapa Flow, with all despatch as the senior member of a group, to take over a convoy from the destroyers which were finally engaged in the sinking of the Bismarck. Later , , , ,