I concur that in a war zone, combat uniforms should be the same, for the very reasons stated. However, Mr. Trip_Wire said "All the services should wear the same type of utility and/or BDU uniform! No exceptions," which I understood to mean across the board, every service man or woman. If I misunderstood, I sincerely apologize. As to being in a war zone, I would fit sailors on a ship in the Persian Gulf or other waters doing VBSS and suchlike duties into that category, but I still believe dungarees and coveralls to be the better uniform for them.
Then again, maybe, having been a Bos'n's Mate, I'm a little more traditional