Impressive sets
A lot of the film looked like it was filmed on sets with cliffs and rivers and aeroplanes (presumably not full scale but pretty big) being shot down. Not a particularly good film, a bit of war time, pro Chinese propaganda with Alan Ladd trying to look a bit too tough but ably supported by William Bendix and Loretta Young.
Ladd had a good name though, David Llewellyn Jones - very Welsh.