What was the united states'' principal use of guam in the late 19th century and early 20th century?

After the end of the Spanish-American War, Guam became to be administered by the US.

There naval and air bases were established to ensure American checkpoints in the Pacific Ocean, which were very useful in the Pacific Campaign of the Second World War.

With a strategic location in the Pacific, the US Army installations located there are some of the most important in the entire ocean. After the closing of the North American bases in the Philippines, both the Navy and the Air Force Pacific deployments were transferred to this island.

the option which was not a function of missionaries in the northwest was the first one - they established posts for trading furs and other goods.

missionaries were sent around the world to spread religion and their knowledge and others - they were not merchants who sold furs and other goods.

the  equal rights amendment  (era) states: "equality  of  rights  under the law shall not be denied or abridged by the united states or by any state on account of sex." congress first introduced the era in 1923, but the campaign for ratification took off in the 1960s during the  civil rightsmovement.