柯雷吉多尔岛 通过菲律宾地图我们可以看到,马尼拉湾向西对着中国南海,而要塞之岛柯雷吉多尔刚好位于马尼拉湾的入口处。柯雷吉多尔岛北部是巴丹半岛,南部是甲米地省,而甲米地市在柯雷吉多尔岛东部40公里处。在一战前,该岛就修建了许多堡垒,部署了岸防大炮。在两次大战期间,该岛又修建了四通八达的隧道工事,在附近的小岛上还布设了许多重型岸防炮进行支援。美军打算利用被 From the Philippine map, we can see that the Gulf of Manila faces westward toward the South China Sea, and the fortress island of Colegiador is just at the entrance of Manila Bay. The northern part of the island of Cfedigold is the Bataan Peninsula, the southern part of Krabi province, and the city of Krabi is 40 kilometers east of the island of Kegratido. Before World War I, the island built many fortresses and deployed shore-based cannon. During World War II, the island has also built a tunnel that runs well in all directions and has also deployed a number of heavy-duty shoreline guns on the nearby islands to support it. The U.S. military intends to use it