A U.S. Navy helicopter lands on the USS Comfort, one of two U.S. hospital ships in the Persian Gulf. If diplomacy fails and statecraft turns to war to resolve the gulf crisis, wounded American soldiers will mostly end up on the two ships. The USS Comfort and her sister ship, the USS Mercy, are the world's largest medical trauma centers on land or sea. They jointly contain 24 operating rooms and 2,000 hospital beds. "We are planning for a massive number of casualties," Capt. Paul D. Barry told reporters who visited the USS Mercy. "That is what we are drilling for. If there were any hostilities, there would be great numbers in the first days."