Folks, after a lot of reading about Korean War I dare to say - The Yak-3, Yak-7B, Yak-9/T, Yak-9U, Yak-9P, La-7, P-39, P-63 and IL-28 were all used by North Koreans and Russians. Most were taken by WWII surplus and secondary duties of VVS. It´s almost impossible to find any photographic evidence. In my oppinion the most rare photo of all aviation history is the one of NKAF P-39/P-63, if they ever exist. In the Web you can find some references about them but they´re all cloudy. The american pilots mistook the sleek P-39 by the sharp nosed Yaks. In the heat of battle, La-7 and La-11 are all the same. For the IL-28, they were restrict for some small operations and in small numbers. If anyone could share some photos here... Thanks!