Hawaii

Hawaii is an island chain archipelago located in the Pacific Ocean and southwest of the United States of America.

The Hawaiian islands became the primary site of American colonization under "Operation Aloha", in which its location proved ideal for refuge and continuation of American society and culture should the American mainland fell to the Chimera. However, in June 14th, 1953 the entire human population on and surrounding Hawaii suddenly and mysteriously disappeared after the USS Providence discovered this bizarre incident.

Note
Like Alaska, it is not given on whether Hawaii is a territory or a state (which was officially admitted into the Union in 1959 in real life) given the Resistance series' alternate history.