Harbor Defenses of the Columbia

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:coastal_defense_command
gptkbp:activeDuring	gptkb:World_War_II
gptkbp:country	gptkb:United_States
gptkbp:disbanded	1947
gptkbp:established	1917
gptkbp:garrison	gptkb:Coast_Artillery_Corps
gptkbp:headquarters	gptkb:Fort_Stevens
gptkbp:includedFort	gptkb:Battery_Walker gptkb:Fort_Canby gptkb:Fort_Columbia gptkb:Fort_Stevens gptkb:Battery_245 gptkb:Battery_246 gptkb:Battery_247 gptkb:Battery_Clark gptkb:Battery_Mishler gptkb:Battery_Murphy gptkb:Battery_Ord gptkb:Battery_Pratt gptkb:Battery_Russell
gptkbp:includedMinefield	gptkb:Columbia_River_minefield
gptkbp:locatedIn	gptkb:Columbia_River_region
gptkbp:notableEvent	gptkb:Japanese_submarine_attack_on_Fort_Stevens_(1942)
gptkbp:operatedBy	gptkb:United_States_Army
gptkbp:partOf	gptkb:United_States_Army_Coast_Artillery_Corps
gptkbp:protectedBy	mouth of the Columbia River
gptkbp:purpose	defend against naval attack
gptkbp:regionServed	gptkb:Oregon gptkb:Washington
gptkbp:successor	gptkb:Columbia_River_Sector,_Harbor_Defense_Command
gptkbp:bfsParent	gptkb:Harbor_Defenses_of_Puget_Sound
gptkbp:bfsLayer	6
https://www.w3.org/2000/01/rdf-schema#label	Harbor Defenses of the Columbia