U.S. soldiers fire blanks to prepare for a live-fire training exercise at the Central Training Area near Tapa, Estonia, July 10, 2015. The training occurred during Operation Atlantic Resolve, a series of ongoing training exercises to build relationships, trust and interoperability between the U.S. and its NATO allies. Dudunji is an infantryman assigned to Company D, 2nd Battalion, 503rd Infantry Regiment, 173rd Airborne Brigade Combat Team.