A Ukrainian Ground Forces soldier provides security during a fast rope from a Ukrainian Mi-8 helicopter as part of Rapid Trident 2021 at Combat Training Center-Yavoriv near Yavoriv, Ukraine, Sept. 21, 2021. Rapid Trident is 6,000 troops from 15 partner countries. During the exercise, joint jumps of Ukrainian and American paratroopers from a U.S. Army C-130 aircraft are planned.