This action occurred simultaneously with the establishment of the four Sea Frontiers.

Sea Frontiers generally started at the shore of the United States and extended outwards into the sea for a nominal distance of two hundred miles.

The Hawaiian Sea Frontier did not actually come into a settled form until September 1942.

On 2 May 1941 Moonstone sailed for patrol duty with the Panamanian Sea Frontier.

The Alaskan Sea Frontier was inactivated in 1971 as part of post-Vietnam military reductions.

Rear Admiral Howard Good was serving as Commander of the Sea Frontier in September 1946.

She operated off the Pacific Northwest until assigned to the Alaskan Sea Frontier 12 April 1944.

The force returned to its base on the 9th, and Dorsey was assigned to the Hawaiian Sea Frontier for patrol, local escort, and training duty.

Crystal arrived at Pearl Harbor 1 May 1942 for duty with the Hawaiian Sea Frontier.

After overhaul at Pearl Harbor she returned to operations under the Hawaiian Sea Frontier, adding weather station patrols to her duties.