USS Cero (SS-225) - Second, Third, and Fourth War Patrols

Second, Third, and Fourth War Patrols

After refitting at Midway from 16 November to 13 December 1943, Cero, Edward Dissette commanding, made an unproductive second war patrol along the Truk-New Ireland route, then put in to Milne Bay, New Guinea, from 12 January to 4 February 1944. Returning to the Truk-New Ireland shipping lanes, she attacked a freighter (later sunk by one of her sister submarines) and inflicted damage on another merchantman. She put in to Brisbane, Australia, 2 March, and sailed 3 April on her fourth war patrol, off the Palau Islands. Her most successful day to date came on 23 May, when she attacked two freighters and a tanker, sinking one cargo ship, and damaging the tanker.