A Ukrainian serviceman stands under Su-27 fighter jet before the Clear Sky 2018 multinational military drills at Starokostiantyniv Air Base in Khmelnytskyi Region, Ukraine, October 12, 2018. A U.S. pilot was among two crew who died when a Ukrainian Su-27 air force fighter crashed during a training flight on Tuesday, the U.S. military said. (Photo/Agencies)
A Ukrainian Su-27 fighter jet flies during the Clear Sky 2018 multinational military drills at Starokostiantyniv Air Base in Khmelnytskyi Region, Ukraine, October 12, 2018. A U.S. pilot was among two crew who died when a Ukrainian Su-27 air force fighter crashed during a training flight on Tuesday, the U.S. military said. (Photo/Agencies)
A Ukrainian Su-27 fighter jet lands during the Clear Sky 2018 multinational military drills at Starokostiantyniv Air Base in Khmelnytskyi Region, Ukraine, October 12, 2018. A U.S. pilot was among two crew who died when a Ukrainian Su-27 air force fighter crashed during a training flight on Tuesday, the U.S. military said. (Photo/Agencies)
A serviceman of the U.S. Army stands in front of a Ukrainian Su-27 fighter jet during the Clear Sky 2018 multinational military drills at Starokostiantyniv Air Base in Khmelnytskyi Region, Ukraine, October 12, 2018. A U.S. pilot was among two crew who died when a Ukrainian Su-27 air force fighter crashed during a training flight on Tuesday, the U.S. military said. (Photo/Agencies)