Bulgarian and U.S. Army soldiers enter a Bulgarian

Bulgarian and U.S. Army soldiers enter a Bulgarian C-27J Spartan during Steadfast Javelin II, Ramstein Air Base, Germany, Sept. 2, 2014. Steadfast Javelin II sustains interoperability between NATO Allies and Partnership for Peace partner nation forces. The interoperability has been gained during combat and multinational contingency operations over the past seven decades, while focusing on building capacity for the current and future operational environment. (U.S. Air Force photo/Senior Airman Damon Kasberg)