U.S. Army Spc. Ruben Moulton, left, a paratrooper assigned to Bravo Troop, 1st Squadron, 91st Cavalry Regiment, 173rd Airborne Brigade Combat Team demonstrates the proper use of an Improved Target Acquisition System (ITAS) mounted on a Tube-launched, Optically-tracked, Wire-guided (TOW) missile launcher to an Estonian Defense Forces soldier during an equipment display, at Paldiski, Estonia, June 26, 2014. U.S. Soldiers with Bravo Troop, 1st Squadron, 91st Cavalry Regiment are in Paldiski as part of an unscheduled land forces exercise to demonstrate commitment to NATO obligations and sustain interoperability with allied forces.