Fort Drum concrete battleship

E1146463 UNEXPLORED

Fort Drum, known as the "concrete battleship," was a heavily fortified, island-like coastal defense structure in the Philippines designed to resemble a battleship and armed with large-caliber guns to protect Manila Bay.

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Fort Drum concrete battleship canonical	1

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Harbor Defenses of Manila and Subic Bays → notableFeature → Fort Drum concrete battleship ⓘ