Pacific bases Article XIX of the treaty also prohibited the British, the Japanese and the Americans from constructing any new fortifications or naval bases in the Pacific Ocean region. Existing fortifications in Singapore, the Philippines and Hawaii could remain. That was a significant victory for Japan, as newly-fortified British or American bases would be a serious problem for the Japanese in the event of any future war. That provision of the treaty essentially guaranteed that Japan would be the dominant power in the Western Pacific Ocean and was crucial in gaining Japanese acceptance of the limits on capital ship construction.
pacific bases article xix of the treaty also prohibited the british the japanese and the americans from constructing any new fortifications or naval bases in the pacific ocean region existing fortifications in singapore the philippines and hawaii could remain that was a significant victory for japan as newly-fortified british or american bases would be a serious problem for the japanese in the event of any future war that provision of the treaty essentially guaranteed that japan would be the dominant power in the western pacific ocean and was crucial in gaining japanese acceptance of the limits on capital ship construction