Sector Security An Army paratrooper establishes sector security on a drop zone alongside paratroopers from the Lithuanian-Polish-Ukrainian brigade after conducting a joint airborne operation as part of Exercise Rapid Trident near Yavoriv, Ukraine, Sept. 25, 2021. SHARE: Download: Full Size (9.23 MB) Tags: partnerships, Army, Exercise Rapid Trident Credit: Army Staff Sgt. John Yountz VIRIN: 210925-A-TO756-040.JPG Photo Gallery