marianas Guam's locale Pacific archipelago Guam, Saipan, etc War zone of 1944 Guam's island chain Guam's group Guam, Saipan and others ___ Trench (deepest point on earth) Pacific island chain ___ Trench (deepest point on Earth's surface) ___ Trench (earth's deepest depression) Island group that includes Guam A chain of coral and volcanic islands in Micronesia halfway between New Guinea and Japan Pacific island group Guam, Saipan and others (8)