This is a list of my favorite action/adventure movies released between 1940 and 1949. This is not a best of list.
http://www.ranker.com/list/movies-1940-1949-action-and-adventure/robg,
Bataan
Fort Apache
Objective, Burma!
One of Our Aircraft is Missing
Red River
Saboteur
Sergeant York
The Sea Hawk
Twelve O'Clock High
Wake Island