 Complete the following phrase:  Following shakedown off Bermuda, Monssen steamed north to Boston, Massachusetts, to join the new cruisers , , and and escort them to San Diego. From San Diego, she screened Carrier Division 26 CarDiv 26 to Pearl Harbor, arriving 8 May for rehearsals for the Marianas campaign. On 30 May, the destroyer sailed with Task Group 52.16 TG 52.16 for Eniwetok, whence she continued on to Saipan, arriving on 15 June. By dawn, she had commenced preparatory firing against Japanese positions on Green Beach 1. Close fire support was started with the initial 