A special U.S. military court this week removed a major obstacle to trials of enemy combatants held in Guantánamo Bay, Cuba, overturning a lower court’s ruling that had put such trials in jeopardy. The lower court had ruled that before going on trial, Guantánamo detainees first had to be declared “unlawful enemy combatants.” Military authorities had already found the prisoners to be enemy combatants, but did not specifically say they were “unlawful.” The new ruling clears the way for prosecutors to present evidence against the 340 prisoners held at Guantánamo.