North Korean state media have reported that leader Kim Jong-un has ordered his top generals to put missile units on stand-by. The claim follows the deployment of two US B-2 stealth bombers to the region.The report from the official Korean Central News Agency (KCNA) claimed that Kim Jong-un had ordered the country\'s military leaders to put missile units on stand-by. KCNA said they would target US military bases in South Korea and the Pacific, though it also said they were to fire only in retaliation.\"If they make a reckless provocation with huge strategic forces, the Korean People\'s Army should mercilessly strike the US mainland, their stronghold, their military bases in the operational theaters in the Pacific, including Hawaii and Guam, and those in South Korea,\" KCNA quoted Kim Jong-un as saying, in a report that could not be verified.