; and (2) the Secretary of State, through bilateral engagement and multilateral fora, should diplomatically engage with the governments of countries that have reportedly proposed arms transfers to or activities with Iran and with other United Nations Security Council member states in order to prevent such transfers or activities. 4. Report Not later than 90 days after the date of the enactment of this Act, and annually thereafter, the Secretary of State shall submit to Congress a report on each covered activity or transfer, and the diplomatic responses of the United States to each such covered activity or transfer, that is proposed during the one-year period preceding the date of the submission of the report. 5. Prohibition on military assistance to countries that engage in arms transfers and activities with respect to Iran (a) In general Subject to subsection (c), and effective beginning on the date that is 180 days after the date of the enactment of this Act— (1) no military assistance, including military assistance furnished under the Foreign Assistance Act of 1961, the Arms Export Control Act, or any other provision of law, may be provided to a county that engages in any covered activity or transfer; and (2) no license may be granted to export an item on the United States Munitions List under section 38 of the Arms Export Control Act ( 22 U.S.C. 2778 ) or any other provision of law to any country that engages in any covered activity or transfer. (b) Waiver The President may waive the prohibitions under subsections (a) on a case-by-case basis with respect to a particular country if the President determines and reports to the appropriate congressional committees that it is important to the national interest of the United States to do so. 6. Definitions In this Act: (1) Appropriate congressional committees The term appropriate committees of Congress means— (A) the Committee on Armed Services, the Committee on Foreign Affairs, and the Committee on Appropriations of the House of Representatives