Hawker Hurricane in Yugoslav service
In late 1937, the Royal Yugoslav Air Force (Serbo-Croatian Latin: Vazduhoplovstvo Vojske Kraljevine Jugoslavije, VVKJ) placed an order with Hawker Aircraft for twelve Hawker Hurricane Mk I fighters, the first foreign purchase of the aircraft. The VVKJ operated the British Hawker Hurricane Mk I from 1938 to 1941.
Source: Wikipedia — Hawker Hurricane in Yugoslav service (CC BY-SA 4.0)