Uh, no S2A or A2A Missiles in Korea.
Un coalition had forces from many countries there, and something like 13 countries sent combat troops. As for aircraft, IIRC it goes something like this:
UK: Fleet Air Arm provided service with Spits, Sea Furies, Fairy Fireflies(?or something like that)
Australia: Sent a squadron of ?F51 pilots (8th RAAF? I'm just doing this from memory), who later moved to Meteor Mk. VIIIs.
South Africa, the 2nd SAAF (Cheetahs) flew F51s alongside the US 18 F/Bs (again, I think), and graduated with them to F86s.
and the ROKAF, of course.
I think some other forces flew transports in and out.