1st Class Michael Migliorisi uses a Lightweight Laser Designator Rangefinder to observe artillery rounds exploding on the impact area of Polatlı Training Area, Turkey, during Dynamic Front Phase 2. Christopher StewartSept. 21 (UPI) -- A multinational military exercise intended to improve interoperability between the U.S. Army and allied nations wrapped up its final phase in Turkey on Monday. Dynamic Front began in 2016 as a small artillery-fires drill at Grafenwoehr Training Area, Germany, that has since expanded to 30 nations that train at five locations in Europe. This year's first phase was held in May at Grafenwoehr and at Torun Training Area in Poland. "It was an honor to be the first National Guard unit hosted by Turkey for a NATO exercise and their hospitality went above and beyond."