U.S. Navy Boatswain's Mate 1st Class Eddie Montalvo, left, and Mineman 1st Class Thomas Harrell, both assigned to Commander, Task Force (CTF) 56, clean M4 carbine bolt assemblies during weapons training at Naval Support Activity Bahrain in Manama, Bahrain, Feb. 12, 2014. CTF-56 commanded expeditionary combat forces in the region.