Silver Lions push onward into Estonia M1A2 Abrams tanks loaded onto railcars in Trzbien, Poland, wait to be transported to Estonia, Jan. 31, 2017. The tanks are assigned the 4th Infantry Division’s Charlie Company, 1st Battalion, 68th Armored Regiment, 3rd Armored Brigade Combat Team, which is starting a rotation to Estonia in support of Operation Atlantic Resolve. Army photo by Staff Sgt. Corinna Baltos SHARE IMAGE: Download Image: Full Size (1.74 MB) Tags: 4th Infantry Division, operation atlantic resolve, USAEUR, 3-29 Field Artillery, 29th Field Artillery Regiment, 3rd Battalion Photo By: Staff Sgt. Corinna Baltos VIRIN: 170131-A-XQ291-425.JPG Photo Gallery