PFC Nathan Kibler, with the 2/138 Field Artillery, takes cover behind while performing a 3 to 5 second rush on the grenade assault course during the 138 Fires Brigade Annual Training at the Wendell H. Ford Regional Training Center, in Greenville, Ky., June 11, 2012. (Kentucky National Guard photo by 2nd Lt. Nicholas Jackson, HHB 2/138th FA)

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