Government of Guam Revolvy Brain revolvybrain. The American garrison was defeated by Japanese forces on 10 December, which resulted in an occupation until the Second Battle of Guam in Dedego-Yigo Red 1: The ancient-Chamorro society had four classes, chamorri, matua, achaot, the matua were located in the coastal villages, which meant they had the best access to fishing grounds, whereas the manachang were located in the interior of the island.

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