The Polish Air Force (Sily Powietrzne, literally "Air Forces") is a military branch of the Polish Armed Forces. Until July 2004 it was officially known as Wojska Lotnicze i Obrony Powietrznej (literally: Air-and-Air Defence Forces). In 2014 it consisted of roughly 16,425 military personnel and about 475 aircraft, distributed among 10 bases throughout Poland.