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This island was first discovered by the west in 1521 by Ferdinand Magellan, although it would not be claimed by the Spanish for another 40 years. It is thought to have been originally settled around 4,000 BC by Austronesian peoples from the Indonesian archipelago located to this island's west. It later became a Spanish colony and Philippine Galleon port of call that was taken over by the US following the (*) Spanish-American war. The largest and southernmost of the Mariana Islands, its occupation by the Japanese during the Second World War saw a large amount of persecution against its indigenous Chamorro population. For 10 points, name this island with a capital at HagÃ¥tÃ±a that is soon to be home to an army garrison that will increase its population by 40 percent. Â 
This island was first discovered by the west in 1521 by Ferdinand Magellan, although it would not be claimed by the Spanish for another 40 years.
Guam