Ukraine Capt. Komar Mykhailo, International Peacekeeping and Security Simulation Center, left, and U.S. Army Capt. Kyun Choi, opposing forces adviser for the Joint Multinational Simulation Center, 7th Army Training Command, right, discuss the upcoming training exercises, Sept. 18, 2019, as part of Rapid Trident 2019, which involves approximately 3,700 personnel from 14 nations, Sept. 13-28, 2019, Yavoriv, Ukraine. Rapid Trident is an annual, multinational exercise that supports joint combined interoperability among the partner militaries of Ukraine and the United States, as well as Partnership for Peace nations and NATO allies. (U.S. Army photo by Sgt. Kyle Larsen.)