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Guernica is a painting by Pablo Picasso. It was created in response to the bombing of Guernica, a Basque Country village in northern Spain, by German and Italian warplanes at the behest of the Spanish Nationalist forces on 26 April 1937 during the Spanish Civil War. The Spanish Republican government commissioned Picasso to create a large mural for the Spanish display at the Exposition Internationale des Arts et Techniques dans la Vie Moderne at the 1937 World's Fair in Paris.

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Guernica shows the tragedies of war and the suffering it inflicts upon individuals, particularly innocent civilians. This work has gained a monumental status, becoming a perpetual reminder of the tragedies of war, an anti-war symbol, and an embodiment of peace. Upon completion Guernica was displayed around the world in a brief tour, becoming famous and widely acclaimed. This tour helped bring the Spanish Civil War to the world's attention.

Well, "universal indictments of war" are as old as war itself. Picasso's painting represents the RESULTS of modern warfare "objects." As, for example, a Civil War photo of dead soldiers in a gully. You don't have to see the artillery to recognize its impact.

The germans bombed Gernika before starting WWII, wich ended with a very modern warfare