Rio Bravo, it was in reaction to High Noon which Wayne considered un-American.
From "The Life and Times of the Western Movie" Jay Hyams (1983 W.H. Smith)It was in an interview in Playboy (May, 1971) he said High Noon was "the most un-American thing I've ever seen in my whole life.... I'll never regret having helped run Foreman out of the country". Nice guy huh? Any way Howard Hawks agreed with Wayne, both thought the premis of High Noon was ridiculous. They believed that no marshall would expect towns people to help fight outlaws and no citizens of the old West, tough conquerors of the frontier, would have refused to if asked. They also dislikede 3:10 to Yuma. They didn't like its treatment of heroism, and they thought the outlaws taunting of his farmer-captor could have been esily hanndeled.So they made Rio Bravo
I suppose Wayne thought Soldier Blue was also "un-American"?
He had a damn good reason to be bitter towards the Communists, as they sent guys to assassinate him on at least two occasions.
Mao and Stalin personally ordered attempts on Wayne's life on separate occasions (both times the would-be assassins were apprehended so it isn't just a conspiracy theory), because his anti-Communist views were supposedly a threat to the stability of their respective countries. Also American Communists, acting on their own accord threatened him and stalked his family on a number of occasions. So yeah, I think his hatred of Communism had a good reason. Then again, seeing as I'm a guy who finds it hard to excuse an ideology that is responsible for the deaths of 150,000,000 people in the last ninety years, I'm a bit biased. And in any case (and more on topic), "Rio Bravo" is at least as good, if not better, than "High Noon". I don't honestly give a s*** about its political viewpoints; if I did, I would DETEST "The Wild Bunch" and "Once Upon A Time In The West", among many of my other favorite films. "3:10 To Yuma" I've not seen, so I can't pass judgment.
But then again, I’m someone who finds it hard to excuse an ideology that is responsible for war, famine and poverty, so I might perhaps be a little biased