Toomas Hendrik Ilves, right, the president of Estonia, is briefed by 1st Lt. Brian Van Vliet on the capabilities of the U.S. Army M1 Abrams Main Battle Tank at a presidential visit with Soldiers at the start of Operation Siil in Jõhvi, Estonia, May 9. Van Vliet, a native of Fort Washington, Md., and platoon leader with C Company, 2nd Infantry Battalion, 7th Infantry Regiment, 3rd Infantry Division out of Fort Stewart, Ga., as well as A Troop, 1st Squadron (Airborne), 91st Cavalry Regiment, 173rd Airborne Brigade Combat Team, out of Grafenwohr, Germany, are in Estonia supporting Operation Atlantic Resolve, an ongoing multinational partnership focused on joint training and security cooperation between U.S. and other NATO allies. (U.S. Army photo by Capt. Ryan Jernegan, 16th Mobile Public Affairs Detachment)