 Complete the following phrase:  By June Hornets air group Carrier Air Group 2 CVG-2 mustered 40 Hellcat fighters, including 4 night-fighter versions, 33 Curtiss SB2C Helldiver dive bombers and 20 Avengers. Task Group 58.1 had exchanged Cowpens for Hornets sister so it mustered a pair each of fleet and light carriers for the campaign. Task Force 58 departed Majuro on 6 June in time to begin the air strikes on the southern Marianas six days later, three days prior to the planned 