Poland stands in formation for the opening ceremony of Rapid Trident in International Peacekeeping and Security Centre, Yavoriv, Ukraine, Sept. 3 2018. U.S. Army photo/Sgt. Micah Merrill 4th Infantry Division & Fort Carson Change of Leadership Ceremony By Lauren Katzenberg on December 30, 2017 T&P on Facebook Looking for a great career? Or know another veteran, service member, or military spouse who is? Get started at Hirepurpose.