The base had been home to about 60,000 US personnel over time.
More than 58,000 US personnel died as a result of the conflict.
The measure will eventually see 2,500 US personnel based in the north of the country.
U.S. military personnel make up approximately 1.3% of the population in the islands.
Several injuries, but no US personnel military or civilian were killed.
U.S. personnel there declined from a peak of about 1,300 to around 300.
In the first three months of the campaign, 15 U.S. personnel have died.
U.S. personnel were not to engage in combat operations, but sometimes did.
This brought to the island a large number of U.S. military personnel.
The government planned to use the rule to protect the identities of US military personnel.