Two Ukrainian army soldiers from 1st Battalion, 30th Mechanized Brigade move through high grass and heavy fog while their unit engages with enemy force role players during Exercise Rapid Trident 2017 at the Yavoriv Combat Training Center on the International Peacekeeping and Security Center in Western Ukraine, on Sept. 21. Rapid Trident is an annual, multinational exercise involving approximately two thousand personnel from 14 nations. The exercise is composed of a multinational, brigade-level, computer-assisted command post exercise integrated with a battalion-level field training exercise and platoon-level situational training exercises. The exercise will also include integrated, aeromedical evacuation and tactical airlift and airdrop training. Rapid Trident 2017 supports joint combined interoperability among Ukraine, the U.S., and allied and partner nations. (Photo by Sgt. Anthony Jones, 45th Infantry Brigade Combat Team)