; relating to blocking property of persons threatening the peace, security, or stability of Yemen). (2) Iran’s Revolutionary Guard Corps has transferred increasingly sophisticated weapons systems to the Houthis, who have in turn fired missiles into Saudi Arabia from positions in northern Yemen, including a missile in November 2017 that targeted Riyadh International Airport. In response, then-Ambassador to the United Nations Nikki Haley called on the United Nations and international partners to take necessary action to hold the Iranian regime accountable for these violations . (3) In addition to weapons, Iran is reportedly providing proxies, including Hezbollah, to train Houthi units and act as logistical advisers. (4) The Iranian-supported Houthis have attacked coalition or coalition-affiliated maritime targets multiple times, a United States Navy ship twice, and other shipping, forcing the United States to respond with a combination of diplomacy and calibrated military strikes against three radar facilities in Houthi-controlled territory. (b) Statement of policy It is the policy of the United States— (1) to condemn the activities conducted by the Government of Iran that— (A) aggravate the civil war in Yemen; or (B) undermine United Nations peace efforts in Yemen; and (2) to call on all responsible governments to take measures to reduce conflict in Yemen, including by— (A) interdicting weapons being transferred from Iran to the Houthis