just saw this on TCM, I enjoyed it, I give it a 7.5/10
Feels very much like a spag. If you didn't see Robert Mitchum and all these other Americans, you'd swear this was a spag. Besides that much of it takes place in the Mexico-Texas border, it is dirty, grimy, ugly faces, etc., nothing well-scrubbed like you might expect from some AW's.
For baseball fans, there is a wonderful treat of seeing the legendary pitcher Satchel Paige in the role of the black soldier

The sound was really bad on TCM, many times sounded like the actors were speaking under an ocean or something, I had to turn my speakers waaaaay up to try to hear properly.
I've never thought Julie London was pretty, but in this movie she looks particularly ugly.