U.S. Marines with Task Force 27, II Marine Expeditionary Force, transport tactical vehicles via landing craft, air cushion during a Defense Support of Civil Authorities (DSCA) exercise on USS Carter Hall (LSD 50) Harpers Ferry Class, Virginia, July 12, 2019. U.S. Marines with II Marine Expeditionary Force rehearsed a loading exercise with the U.S. Navy to rapidly form, embark and deploy maritime DSCA operations in support of U.S Northern Command.