Joining Task Force 58, "Cowpens" sailed from Pearl Harbor on 16 January 1944 for the invasion of the Marshalls. Her planes pounded Kwajalein and Eniwetok the last 3 days of the month to prepare for the assault landing on 31 January. Using Majuro as a base, the force struck at Truk on 16–17 February and the Mariana Islands on 21–22 February before putting into Pearl Harbor on 4 March. Returning to Majuro, Task Force 58 based here for attacks on the western Carolines; "Cowpens" supplied air and antisubmarine patrols during the raids on Palau, Yap, Ulithi, and Woleai from 30 March to 1 April. After operating off New Guinea during the invasion of Hollandia from 21 to 28 April, "Cowpens" took part in the strikes on Truk, Satawan and Ponape from 29 April to 1 May, returning to Majuro on 14 May for training.