Sailors assigned to Coastal Riverine Force sounded off during an establishment ceremony for Coastal Riverine Force (CORIVFOR) at Joint Expeditionary Base Little Creek-Fort Story, Va., June 1. CORIVFOR, a merger of Riverine Group 1 and Maritime Expeditionary Security Force (MESF), performs core maritime expeditionary security missions in the green and brown waters bridging the gap between traditional Navy blue water operations and land-based forces, spanning the capabilities that currently reside with the riverine and expeditionary security force. (U.S. Navy photo by Mass Communication Specialist 1st class Julian Olivari)