To be fair I still remember seeing those guts as a 6 year old lolSaving Private Ryan first 20 minutes ??
@FloridaDad I don’t have kids but I was the kid that loved war movies and playing pretend navy pilot. There is a docu-series called Carrier that is quite kid friendly and probably your best bet.
One of my personal favorites that is rated G is Tora! Tora! Tora! But it’s old and kids may have a hard time maintaining an attention span. Midway is another old one that is mild and rated PG. Greyhound is relatively mild for a new navy movie, doesn’t feature aviation really, but weighs a lot on the morality of war which is a very useful lesson. May not be suitable for that young if kids though so I’d preview it and make that call yourself.
Broadly military there is M*A*S*H which becomes an entirely different series if you find it without the laugh track. It’s not too intense and despite being a sitcom also exhibits the concepts of balancing morality and duty pretty extensively.