 Complete the following phrase:  On 23 March, Indiana steamed to Okinawa to join the preparatory bombardment of the island. She fired 180 main battery shells the next day and then rejoined the fleet. She resumed her air defense role for the next several days while the carriers launched raids on the island. For much of April, Indiana and the rest of TG 58.1 provided support to the marines and soldiers fighting in the Battle of Okinawa. On 7 April, the Japanese launched a major counter-attack on the Allied naval forces, including large-scale kamikaze strikes and 