What smell reminds you of being deployed?

I know this question might seem odd to some, but I think it could lead to some interesting conversation.

It's no secret that a lot of things can remind you of different times in your life. One of the strong is smells. From the smell of your mother baking a pie to the smell of fresh clean laundry or even the amazing smell of bacon frying up in the morning; smells can send us back. Some are not as nice as others. For those of us that have deployed; there is a long list of smells that remind us of our time down range. Personally, I remember the indescribable smell of Iraq. The dust, the smoke, the smell of not showering for a few days.

So the question is simple. What smell takes you back there? For me; its the smell of hand sanitizer.