US Combat Artists
Sketchpad Warrior documents his work in Iraq and Afghanistan from 2006.
PBS created a documentary of combat artists during during WWII titled "They Drew Fire". The accompanying website contains resources of major artists and works from the period.
There's a long tradition of artists being deployed into combat zones to document the day-to-day lives of soldiers and civilian populations. Drawing can give a different perspective on war that still photography and video don't.
Kristopher Battles is serving in the US Marine Corps as a "Combat Artist". His blog