This slide show from the Society of Illustrators has a devastatingly spot-on selection of Anti-War art in a variety of mediums. 
There is also a competition for school students- it looks like its aimed at the college level.
The Carrot Revolution is an art education weblog and a resource page for art educators, art students, and artists in the digital age. Our goal is to fight the tyranny of the ordinary and to liberate from the status quo. Questions, comments, suggestions? Email! dsgran@yahoo.com.
Rotoball is an international collaborative animation project for students. Rotoball 2015 is now underway! Head over to our website and join the project!
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