While the United States and Iran heatedly battle over nuclear disarmament on the world stage, they joined forces last week before the 7th U.S. Circuit Court of Appeals.

The court heard arguments on Oct. 26 in a case asking whether the Field Museum in Chicago and the University of Chicago must give up artifacts purportedly owned by Iran as compensation for victims of a terrorist bombing allegedly sponsored by Iran. The U.S. government as amicus curiae sided with Iran in an effort to overturn a trial court ruling backing the victims’ efforts to seize the artifacts.