A U.S. Army paratrooper, left, with Alpha Troop, 1st Squadron, 91st Cavalry Regiment, 173rd Infantry Brigade Combat Team participates in partner nation weapons familiarization training during exercise Steadfast Jazz 2013 in the West Pomeranian Voivodeship in northwestern Poland Oct. 25, 2013. Steadfast Jazz is a major field exercise conducted at several locations throughout Europe and designed to increase interoperability between NATO members.