Boatswain's Mate Seaman Tanner Sparks, assigned to Amphibious Construction Battalion (ACB) 1, takes an azimuth reading before starting out on patrol during Block Training 2014.

CAMP PENDLETON, Calif. (Dec. 08, 2014) Boatswain's Mate Seaman Tanner Sparks, assigned to Amphibious Construction Battalion (ACB) 1, takes an azimuth reading before starting out on patrol during Block Training 2014. Block Training is a combination of classroom instruction and practical, hands-on field demonstrations meant to build unit cohesion and hone war-fighting skills in a tactical environment. (U.S. Navy photo by Mass Communication 3rd Class Eric Chan) File# 141208-N-KK081-144