Is it normal for a guy to shave the pubic hairs?

Lots of guys do and lots don't - it's a personal preference

only if they are in a combat situation like the persion gulf where there the hair causes itching

O yes, of course

I would exactly say it is abnormal. A lot of people just "let it go" or trim with scissors. Some people prefer to shave, wax or nair it! It is strictly up to you and how you prefer your pubic hair....

Probably not.