Keywords: US Navy 080728-N-5328N-681 Master-at-Arms 2nd Class Joshua Johnson performs patrol aggression training at NAS Pensacola with.jpg en PENSACOLA Fla July 28 2008 Master-at-Arms 2nd Class Joshua Johnson from Shickshinny Pa assigned to Naval Air Station NAS Pensacola Security Force performs patrol aggression training at NAS Pensacola with Drumo a Belgian Malinois Johnson along with other Sailors assigned to NAS Pensacola Security Force is pursuing a certification in homeland security through the Navy Credentialing Opportunities Online COOL Web site U S Navy photo by Gary Nichols/Released 2008-07-28 080728-N-5328N-681 Navy http //www navy mil/view_image asp id 62173 U S Navy photo by Gary Nichols PD-USGov-Military-Navy Naval Air Station Pensacola Master-at-arms Military working dogs of the United States Belgian Shepherd Malinois Schutzhund |