Edited sentence: According to Smyth, in many cases Houthi leaders go to Iran for ideological and religious education, and Iranian and Hezbollah leaders have been spotted on the ground advising the Houthi troops, and these Iranian advisers are likely responsible for training the Houthis to use the type of sophisticated guided missiles fired at the US Navy.Essentially, Iran is backing the Houthis to fight against a Saudi-led coalition of Gulf States fighting to maintain government control of Yemen.For Iran, supporting the revolt in Yemen is "a good way to bleed the Saudis", Iran's regional and ideological rival.Phillip Smyth of the Washington Institute for Near East Policy told Business Insider that Iran views Shia groups in the Middle East as "integral elements to the Islamic Revolutionary Guard Corps (IRGC)".Smyth claimed that there is a strong bond between Iran and the Houthi uprising working to overthrow the government in Yemen