In February–early March 1945, "Massachusetts" provided anti-aircraft cover for airborne raids on Honshū, Iwo Jima and Kyushu. On 24 March, the ship bombarded Okinawa; for the remainder of that month and a majority of April, "Massachusetts" once again provided anti-aircraft defense, this time for Allied ships massed near Okinawa. On 5 June, she suffered through another typhoon, Louise, this one with winds. Five days later, she bombarded Minamidaitō. 1 July saw the Third Fleet and "Massachusetts" set course for Japan; the battleship protected carriers while they launched raids on Tokyo, then moved closer to land to hit targets with gunfire. "Massachusetts" attacked Japan's second largest iron and steel center, Kamaishi on Honshū, on 14 July; Hamamatsu on 28 July; and Kamaishi on 9 August. The latter bombardment was probably the last 16-inch shell fired during World War II.