Iranian state television says Tehran will hold 10 days of ground, naval, and missile exercises starting today. "The Great Prophet Six" will include tests of long-range missiles such as the Sajjil, which boasts a rang of more than 1,240 miles, reports Iranian media. Medium- and short-range missiles, drone aircraft, and the country's air-defense systems will also take part in the drills, which the Iranian chief of aerospace says is a direct response to growing US presence in the region. (More Iran stories.)