Video Related To: Iran may still be years away from any nuclear-armed missile

US military strength beefed up at Hormuz as nuclear talks with Iran fade: The Obama administration released details Tuesday, July 3, of a fresh buildup of its military forces in the Persian Gulf, stressing their task is to fend off any Iranian attempt to endanger international shipping by blocking or planting mines in the Strait of Hormuz. Shortly after the announcement, senior US administration officials said the fourth round of nuclear negotiations between Iran and six world powers taking place in Istanbul Tuesday were most probably the last: Tehran has refused to give way on the key issues of the 20-percent grade enrichment of uranium and the closure of its underground nuclear facility at Fordo. The new war drums sent oil past $100 for the first time in three weeks. As for the Gulf buildup, US sources said counter-measures were in place in case the extra forces were targeted for Iranian aggression. Tehran earlier threatened military reprisals for the oil embargo imposed by the European Union Sunday, July 1. The next day, the Prophet 7 missile exercise was launched by Iran's Revolutionary Guards simulating attacks on "enemy air bases." The wording of the exercise's mission was taken as strongly intimating that Tehran had US air bases in the Persian Gulf and Middle East, including facilities used the US Air Force in Israel and Turkey, well within the sights of its missiles. It was stressed that short-, medium- and long-range missiles were being put through their paces <b>...</b>