U.S. Army Soldiers, assigned to the Hammer Troop, 3rd Squadron, 2d Cavalry Regiment, fire a 120mm high explosive mortar round from a Stryker Mortar Carrier Vehicle during NATO’s enhanced Forward Presence Battle Group-Poland mission in Bemowo Piskie, Poland, May 5, 2020. NATO’s enhanced Forward Presence consists of four battalion-sized battle groups deploying on a persistent rotational basis to Estonia, Latvia, Lithuania, and Poland to demonstrate the alliance’s determination and ability to act as one in response to any aggression against its members.