In this Friday, Dec. 25, 2015 photo released by the U.S. Navy, the aircraft carrier USS Harry S. Truman navigates the Gulf of Oman. Iranian naval vessels conducted rocket tests last week near the USS Harry S. Truman aircraft carrier, the USS Bulkeley destroyer and a French frigate, the FS Provence, and commercial traffic passing through the Strait of Hormuz, the American military said Wednesday, Dec. 30, 2015 causing new tension between the two nations after a landmark nuclear deal. (Mass Communication Specialist 3rd Class J. M. Tolbert/ U.S. Navy via AP) MANDATORY CREDIT Photo: Mass Communication Specialist 3r, HOGP / U.S. Navy