Keywords: US Navy gas mask excerise 021015-N-6996M-589.jpg 021015-N-6967M-589 Fort A P Hill Va Oct 15 2002 “ Photographer's Mate 1st Class Mike Pendergrass practices donning his gas mask during a field exercise The five-day training exercise gave participants the opportunities to hone their skills at combat documentation land navigation marksmanship and chemical biological radiological CBR defense measures U S Navy photo by Photographer's Mate 1st Class Shane T McCoy RELEASED US Navy Newsstand photo PD en wikipedia 2004-05-21 Zanimum wikipedia en Later versions were uploaded by Hephaestos Midnightcomm at http //en wikipedia org en wikipedia PD-USGov-Military-Navy Usc original upload log page en wikipedia US_Navy_gas_mask_excerise_021015-N-6996M-589 jpg 2007-09-10 00 38 Midnightcomm 3000×1955×8 717624 bytes <nowiki>Reverted to version as of 16 03 21 May 2004</nowiki> 2004-05-21 16 10 Hephaestos 750×923×8 35381 bytes <nowiki>uploading file of reasonable size</nowiki> 2004-05-21 16 03 Zanimum 3000×1955×8 717624 bytes <nowiki>021015-N-6967M-589 Fort A P Hill Va Oct 15 2002 “ Photographer's Mate 1st Class Mike Pendergrass practices donning his gas mask during a field exercise The five-day training exercise gave participants the opportunities to hone their skills at c</nowiki> MCU-2/P Protective Mask Males wearing gas masks Close Quarters Battle Receiver Photographs by Shane T McCoy Multiple Integrated Laser Engagement System October 2002 photographs |