Kaibōkan or coastal defense ship was a type of naval ship used by the Imperial Japanese Navy during World War II for escort duty and coastal defense. The term escort ship was used by the United States Navy to describe this category of Japanese ships.
The Japanese Etorofu in May 1943.
Destroyer escort (DE) was the United States Navy mid-20th-century classification for a 20-knot warship designed with the endurance necessary to escort mid-ocean convoys of merchant marine ships.
USS Evarts
USS Dealey
HMS Dacres, converted to act as a headquarters ship during Operation Neptune