I remembering some American WWI painters, but I'm drawing a blank at the moment. I'll go back, look at some notes, and get back with you.

Kathe Kollwitz, who lost her son Peter in the early stages of WWI, made many moving drawings and some sculpture dealing with both her personal loss to this war and the greater loss of nations. For a brief look at the personal aspect of her war art see this link: www.pbs.org/greatwar/his...kollwitz.html

This page lists many artists and cartoonists who produced work that directly addressed WWI: www.spartacus.schoolnet.co.uk/FWWart.htm

William Glackens, a fine graphic artist, was sent to Cuba during the Spanish-American War of 1989 to capture events as they were happening in his sketchbook. The Library of Congress produced an exhibit of these drawings a few years ago. You can read about it and view Glackens' work here: militaryhistory.about.com/gi/dy...te.htm Another American artist, Charles Johnson Post, made a number of paintings of the Spanish-American War while he was a private with the 71st New York Infantry. A few can be found here: militaryhistory.about.com/gi/dy...te.htm

If you're interested in the Spanish Civil War (you mentioned Guernica), there is just tons of material available on the art produced during or inspired by this conflict. Large collections of propaganda posters can be found on the internet (here's just one: orpheus.ucsd.edu/speccoll/...index.html ) and many of the era's greatest artists addressed the subject-not just Picasso, but Joan Miró, Rene Magritte (his painting 'Le Drapeau Noir' is believed to be in response to this conflict), Henry Moore, even Salvador Dali, who later became a Franco supporter. Many photographers too-the first that springs to mind for me is Robert Capa, whose lover lost her life in this war.

One hundred years is a long span of time, so you probably should narrow your choice down to one nation or one particular conflict. I hope these links help a bit to do that.

The Civil War was the first major war that was photographed.

Dada was, among other things, a nihilistic reaction WWI in Europe.

The dance art called Butoh was born from the atomic ashes in Post-WWII Japan.

See also: Post-Modernism, horror films, propaganda art, the Mexican Revolution of 1910...

Also: Don't think "art about war." Think about art that concerns the issues of political and social unrest that LEAD to war.