New Hampshire National Guard Soldiers with the 197th Field Artillery Brigade arrive at Himsel Airfield in C-130s flown by the Delaware, Illinois and Kentucky National Guard, Jan. 28, 2015. The Concord Volunteers will participate in Warfighter Exercise 15.3 at Atterbury-Muscatatuck, Ind. More than 3,500 service members from 22 different units from the Army National Guard, Army Reserve, Air National Guard, active duty Army and Canadian Forces will participate in the exercise that is designed to develop, train and exercise the war fighting function of leaders.