Fort Drum (Philippines)
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Fort Drum, also known as El Fraile Island, is a heavily fortified island situated at the mouth of Manila Bay in the Philippines, south of Corregidor Island. Nicknamed a "concrete battleship", the rein
Fort Drum in 1983, with the battleship USS New Jersey (BB-62) in the background
El Fraile Island before the construction of Fort Drum, c. 1909
Longitudinal section
14-inch guns and turret undergoing testing at Sandy Hook Proving Ground before installation at Fort Drum
Fort Frank
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Fort Frank was one of the defense forts at the entrance to Manila Bay established by the United States. The entire island was designated as Fort Frank, in honor of Brigadier General Royal T. Frank, as
14-inch (356 mm) M1910 gun fires at Fort MacArthur, San Pedro, California.
12-inch (305 mm) mortars, similar to those of Battery Koehler.