In May 1944, Asakura was promoted to rear admiral and "Musashi" departed Kure for Okinawa on 10 May, then for Tawi-Tawi on 12 May. She was assigned to the 1st Mobile Fleet, under the command of Vice Admiral Jisaburō Ozawa, with her sister. On 10 June, the battleships departed Tawi-Tawi for Batjan under the command of Vice Admiral Matome Ugaki, in preparation for Operation Kon, a planned counterattack against the American invasion of Biak. Two days later, when word reached Ugaki of American attacks on Saipan, his force was diverted to the Mariana Islands. After they rendezvoused with Ozawa's main force on 16 June, the battleships were assigned to Vice Admiral Takeo Kurita's 2nd Fleet. During the Battle of the Philippine Sea, "Musashi" was not attacked. Following Japan's disastrous defeat in the battle (also known as the "Great Marianas Turkey Shoot"), the Second Fleet returned to Japan. On 8 July, "Musashi" and her sister embarked 3,522 men and equipment of the Army's 106th Infantry Regiment of the 49th Infantry Division and sailed for Lingga Island, where they arrived on 17 July.