Probably as long as there has been war, there have been war artists whose interpretations of the battlefield feed cultural understanding of conflict. Modern armies appoint official artists to chronicle military triumphs; dissident poets and painters provide portraits of victims and the aftermath. Though made decades after the Revolutionary War, Emanuel Leutze’s “Washington Crossing the Delaware” is but one example of a work that lingers in the public consciousness.

Image One of Mr. Khaled's works.

In Gaza, where art supplies are scarce and expression often stifled, the fierce fighting that began July 8 unleashed a barrage of creativity, fueled by social media networks, which have been a prime tool in the parallel propaganda war between backers of Palestinian militants and Israel.

At least a half-dozen artists, some far from Gaza, have circulated drawings like Mr. Khaled’s, overlaid onto pictures of the explosions from Israeli bombs. (He is one of several claiming to have been the first to do this.) Others posted more straightforward paintings of death, destruction, rockets and warplanes, stark graphic designs of strident slogans, digital manipulations and political cartoons. Among the most interesting is a series of mash-ups by Basel Elmaqosui, pairing classic works by the masters with scenes from the street.

Mr. Elmaqosui inserted “The Card Players” by Cézanne into a photograph of men playing cards on a blanket in one of the United Nations schools that have sheltered thousands of displaced residents for weeks. He put Picasso’s “Child With a Dove” next to an actual dove — or perhaps a white pigeon — perched on one of the only walls that remain standing in the destroyed village of Khuza’a, in front of a Palestinian flag. Beside a Beit Hanoun neighborhood reduced to rubble, the figure in Edvard Munch’s “The Scream” howls. “It must be famous drawings so the vision is familiar to people,” said Mr. Elmaqosui, 42, as he sat on the porch of the Windows studio in Gaza City, where he and two others paint, exhibit and run workshops for children. “Many of these drawings are related to our reality. They happened before in the world. It’s like they are happening again now.”

The artists see their work as a form of resistance to Israeli aggression. The resistance is also what Palestinians call the men who launched rockets into Israel, dug tunnels into Israeli territory, and killed Israeli soldiers during their ground invasion of Gaza. But it is much more than a respectable term for militancy or terrorism: Resistance is an admired value, an essential part of life’s fabric after decades living under Israeli occupation and restrictions.