; and (B) with full recognition of the constitutional right of either House to change the rules (so far as relating to the procedure of that House) at any time, in the same manner, and to the same extent as in the case of any other rule of that House. 4. Reporting requirements (a) Report relating to declaration of war or specific statutory authorization (1) In general The President shall, in the case of a declaration of war or specific authorization for introduction of the United States Armed Forces into hostilities, or into situations where imminent involvement in hostilities is clearly indicated by the circumstances, submit to Congress a report on the following: (A) An analysis of the threat to be countered by the use of the Armed Forces. (B) The specific objectives and justification for such objectives to be achieved by the use of the Armed Forces. (C) A description of the scope and duration, cost, and likelihood of success of the use of the Armed Forces. (2) Deadlines The initial report required under paragraph (1) shall be submitted to Congress not later than 90 days after the date of the enactment of a bill or joint resolution that provides for a declaration of war or specific authorization for introduction of the United States Armed Forces as described in paragraph (1), and an update of such report shall be submitted to Congress every 90 days thereafter until the United States Armed Forces are no longer engaged in hostilities or situations as described in paragraph (1). (b) Report relating to national emergency (1) In general The President shall, in the case of introduction of the United States Armed Forces into hostilities, or into situations where imminent involvement in hostilities is clearly indicated by the circumstances, by reason of a national emergency created by an attack or imminent threat of attack upon the United States, its territories or possessions, or the Armed Forces, submit to Congress a report on the matters described in paragraphs (1), (2), and (3) of subsection (a). (2) Deadline The