Tora! Tora! Tora! was pretty good as a documentary.
I vaguely remember Porkchop Hill and The Bridges at Toko-Ri for the Korean War. I hope my just finished script and true story on the Korean War sells to Speilberg. His guys are interested and speaking to my agent.
God speed and luck to ya. I'm writing a screenplay on Korea myself I call "Mig Alley" that tells the jet air war from both the American and Russian pilot's views. Still a long way from finishing the first draft...