I know its against the law to wear any army camo type clothing in Barbados. They had a very horrible incident and have banned it ever since.
Life is too short to let the ship of your dreams sail without you.
Carnival Destiny Feb. 2006
Carnival Fascination Feb. 2007
Royal Caribbean Grandeur of the Seas Feb. 2008 The DTW & MsBJ tour
Carnival Valor MsBJ and Dina Feb. 2009
Carnival Glory MsBJ and Dina Feb. 2010
Carnival Dream MsBJ and Dina Feb. 2011
In this matter I would say when in doubt, don't. I know last year we were specifically told before we ported in Barbados NOT to wear camo. I have been to Jamaica a dozen times and was never told not to there, I don't wear camo so I may not have paid attention, but better safe than sorry.