OD. This is a desert, but don't think you're moving to Iraq. 95% of the time, woodland/od gear works better. OD or woodland gear is probably a better idea because it will work well with either type of bdu. You will probably want to buy a set of 3 color desert bdu's and a set of regular woodland. Most games have a tan team and a green team, so it helps to have both. If you want to go to Operation Lion Claws IV with us, you will need current US-type woodland bdu's.