brown-water Navy
n.— «They came from all over the fleet—off destroyers, from the Seabees, out of the gators and small boat units. Two of the 225 sailors in the squadron came right from boot camp, and the brown-water Navy is the first Navy they’ll know.» —“Getting their feet wet” by Andrew Scutto Navy Times SEpt. 25, 2006. (source: Double-Tongued Dictionary)