FILE-- In this Sept. 24, 2017 file photo, surface-to-surface missiles and a portrait of the Iranian Supreme Leader Ayatollah Ali Khamenei are displayed by the Revolutionary Guard in an exhibition marking the anniversary of outset of the 1980s Iran-Iraq war, at Baharestan Square in Tehran, Iran. On Monday, April 8, 2019, the Trump administration designated Iran’s Revolutionary Guard a “foreign terrorist organization” in an unprecedented move against a national armed force. Iran’s Revolutionary Guard Corps went from being a domestic security force with origins in the 1979 Islamic Revolution to a transnational fighting force. (AP Photo/Vahid Salemi, File)