As of 2023 there are 40,550 active duty members of the Coast Guard along with 7,724 reservists, 21,000 auxiliarists and 8,577 civilian personnel. The Coast Guard falls under the Department of Homeland Security. Migrant interdiction, ICE operations and law enforcement are already in their mission statement. Personnel could be assigned to the Southern Border within days with a phone call from Kristi Noem. No congressional hearings required.