First off, The Neutral Observer extends a huge thank you for your service.
The Neutral Observer requests information, hints, tips, and tricks that you guys picked up over there. Anything from stuff to take that makes your life easier and basic sanitation to dealing with IEDs and combat in built-up terrain, as long as you feel it's wise to discuss said topic on a public message board. Educate The Neutral Observer and anyone else who has interest. Veterans of other conflicts are also welcome to add their wisdom. Any MOS/branch, any rank.
Again, thank you all.