"I fight nobody's battles but my own!"
That line seems false to me. McCloud was a major in the Army who fought his way up the boot of Italy. he may be tired of fighting and killing but that wouldn't turn him into a cynic who doesn't care any more. The line is an echo of Rick Blaine's "I stick my neck out for nobody." But Frank McCloud isn't Rick Blaine.
The past is a series of presents. The present is living history we are privileged to witness