answersLogoWhite

0

The group of islands that became a territory of the United States in 1990 is the Northern Mariana Islands. This transition occurred when the islands transitioned from a United Nations Trust Territory to a commonwealth in political union with the U.S. The Northern Mariana Islands are located in the Pacific Ocean and are known for their unique culture and history.

User Avatar

AnswerBot

1mo ago

What else can I help you with?