22-year-old Polish Army Sergeant Krystian W Banach was one of five Polish soldiers killed in action on 21st December 2011 when his vehicle was hit by a road bomb. He was in a joint Polish American convoy heading for Rawza, eastern Ghazni, when the attack happened.
He served with the 20 Mechanised Brigade Bartoszycka and had been in the Polish Army since 2008. This was his first combat mission. Sgt Banach was posthumously promoted to the rank of Sergeant.