Well, this took me back. Specifically, to a childhood in the early 60s, watching films like this on TV. Mostly wartime and post-war American propaganda, and with none of the production values that viewers of today would expect, these are nonetheless mostly entertaining films.
Wayne plays the same character he does in all of his movies, so you know what to expect. "The Sands of Iwo Jima" is the pick of the bunch here, with the two "Flying" titles and "Seabees" close behind. "Back to Bataan" is OK.
The odd one out - in more ways than one - is "Jet Pilot". Set in the cold war era, this one is a real clunker. But for less than a tenner for six films, it would be churlish to complain.
Bargain.