U.S. Marines conduct patrol and interdiction operations aboard Riverine Command Boat 804. U.S. Marines with Riverine Squadron 1 conduct patrol and interdiction operations aboard Riverine Command Boat 804 off the coast of Newport News, Va., on Dec. 7, 2011. Navy Expeditionary Combat Command units, Maritime Expeditionary Security Squadron 4 and Riverine Squadron 1 participated in the Navy Expeditionary Combat Command integrated exercise as part of predeployment certification. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 371883-U-BNG81-661.jpg Photo Gallery