I would be disturbed too.

I know it may sound too much and I know it is perfectly acceptable in certain cultures but I don't listen to Caetano Veloso songs anymore after having read that he dated his second wife when she was 14 or some such age and he was 45.

There's so much difference in POWER!!
Of course young girls are beautiful, but a woman is MORE than a girl not less. If he doesn't understand this, than he has a problem.

Hamster is right big difference age-gap was normal. But when women were not meant to be partners, but they should be modest and stand in awe of their husbands.

Being in the military, I'd say (but it's just a guess) that he's going for the easy part: let me meet somebody that i can outpower, that should only say yes, because I am so much more expert / adult / capable that she is, so that she must shut up and do what I say.
This is called topdog and undergod in gestalt therapy: there are people who think of themselves as topdogs and they need to find an underdog to function well.

I'd have to join the others: keep clear of him.
If that's how his mind works, no partneship is meant but an adult / child relationship that can be sick and can lead into what you don't want to know.

A lot of people use as many rationalizations as they like to convince themselves (first and foremost) that what they want is safe, natural and sometimes even holy.
But that a woman is so much more than a girl it's not a secret. Is out there for anyone to see

Take care of yourself. If a man does not understand this...... I don't think he will in the near future