Airman 1st Class Seth Lamb, a member of the 122nd Security Forces Squadron, fires a burst of blanks from his M249 light machine gun at enemy combatants during an ambush exercise July 29, 2015, at the Combat Readiness Training Center in Alpena, Mich. Airmen from the 122nd Fighter Wing participated in the exercise as part of their annual training. (U.S. Air National Guard photo/Staff Sgt. William Hopper)
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