Robby Patterson
Watercraft Capable of independent operation below the surface of the water
First war they were widely used Attacking enemy ships or submarines Aircraft carrier protection
Self -propelled explosive projectile weapon Launched above or below the surface the water surface
Were widely used Used against shipping and submarines Germany used torpedoes against Britain
War_I War_I stories/andrea-azbells-a-soldiers-farewell/ stories/andrea-azbells-a-soldiers-farewell/