 Complete the following phrase:  On 13 January, Monssen departed Luzon, escorted empty transports to Leyte, and then proceeded on to Ulithi, where she joined TG 58.5, the fast carrier night group. The force sortied 10 February and set a course for the Japanese homeland. On the 16th and 17th, strikes were conducted on the Tokyo area to prevent reinforcements from being sent to aid the Imperial forces in the Bonin and Volcano Islands. By the 19th, they were off Iwo Jima, providing support for the American troops 