One of the United States' smallest territories is becoming the most heavily fortified. With a land area of only 212 square miles,
Guam's relationship with the United States dates back more than a century.
It became a US territory in 1898, and during World War II, Imperial Japan invaded and occupied the island.
The Cold War with the Soviet Union and the People's Republic of China ensured that US forces never truly left Guam after the war.
Guam's strategic importance waned after the Cold War, and the island became a popular tourist destination for Japanese visitors.
Andersen Air Force Base is the main Air Force base on Guam. The 36th Wing's headquarters
The base is primarily used by the Air Force as a staging area for forces operating regionally as well as tankers supporting aircraft crossing the vast Pacific.