US Secretary of State Hillary Clinton says the United States believes Iran is becoming a military dictatorship. Speaking in front of students in Qatar today, Ms Clinton said Iran's elite military force, the Revolutionary Guard, is "in effect, supplanting the government." Clinton's comments come as she tours the Gulf region to promote efforts to increase pressure against Iran for its nuclear programme. On her next stop in Saudi Arabia she meets with Saudi King Abdullah as well as Foreign Minister Prince Saud al-Faisal to rally Arab support for new sanctions on Iran. The United States has been pressing the UN Security Council to impose a fourth set of sanctions on Iran, which has refused to stop enriching uranium.