Great seal of the United States; Wikimedia Commons.
Midway island, Wake Island, the Philippines, and Guam, all controlled by the USA in 1941, were sites of important battles during the Pacific War.
The United States claims the following possessions today:
American Samoa
Guam
Baker Island
Howland Island
Jarvis Island
Johnston Atoll
Kingman Reef
Midway Islands
Navassa Island
Northern Mariana Islands
Palmyra Atoll
Puerto Rico
U.S. Virgin Islands
Wake Islands