; (3) the Government of Saudi Arabia, the Government of the United Arab Emirates, and the Government of Iran should bear financial responsibility for the economic stabilization and eventual reconstruction of Yemen; and (4) the United States and the international community must continue to support the work of United Nations missions to achieve a political solution to the civil war in Yemen. 403. Strategy for ending the war in Yemen (a) Strategy Not later than 90 days after the date of the enactment of this Act, and every 180 days thereafter until a complete cessation of hostilities in the Yemen civil war, the Secretary of State, the Administrator of the United States Agency for International Development, the Secretary of Defense, and the Director of National Intelligence shall provide a briefing to the appropriate congressional committees on progress toward ending the war in Yemen. (b) Elements The briefing required under subsection (a) shall include— (1) a summary of the United States national security interests threatened by continued civil war and instability in Yemen; (2) a description of the steps and reciprocal confidence-building measures necessary to end the civil war in Yemen and achieve a territorially unified, stable, and independent Yemen; (3) a description of efforts to implement the Stockholm Agreement, the Hudaydah Agreement, and successor agreements; (4) a description of whether the Saudi-led coalition, including the United Arab Emirates, the internationally recognized Government of Yemen, the Houthis, and local Yemeni forces, including forces aligned with Al-Islah and the Southern Transition Council, are taking the necessary steps referred to in paragraphs (2) and (3); (5) a description of United States activities to encourage all parties to take the necessary steps referred to in paragraphs (2) and (3); (6) an assessment of the threat posed by al Qaeda and ISIS in Yemen to United States national security, including— (A) a comprehensive list of all sources of support received by these groups