Grande Island fortifications

E1146459 UNEXPLORED

Grande Island fortifications are coastal defense works on Grande Island in Subic Bay, Philippines, built to protect the strategic harbor approaches as part of the U.S. and Philippine harbor defense system.

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Label	Occurrences
Grande Island fortifications canonical	1

Referenced by (1)

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Harbor Defenses of Manila and Subic Bays → hasPart → Grande Island fortifications ⓘ