(k) direct and supervise the foreign policy of the State and ratify treaties and international agreements with the approval of the National Legislature, (l) seek the opinion of the Constitutional Court on any matter in connection with the Constitution, (m) any other functions as may be prescribed by this Constitution or the law. (2) Notwithstanding sub-Article (1) above, the President of the Republic shall, in respect of the following matters, take decisions with the consent of the First Vice President:(a) declaration and termination of a state of emergency, (b) declaration of war, (c) appointments that the President of the Republic is required to make according to Appendix B1 of the Comprehensive Peace Agreement, (d) summoning, adjourning or proroguing the National Legislature. Vacancy of the Office of the President of the Republic 59 The Office of the President of the Republic shall fall vacant in any of the following cases:(a) expiry of his/her tenure of office, (b) death, (c) mental infirmity or physical incapacity as determined by a resolution of the National Legislature adopted by a threequarters majority of all members, (d) impeachment in accordance with the provisions of this Constitution, (e) submission of his/her resignation to the National Legislature. Immunity and Impeachment of the President and the First Vice President 60 (1) The President of the Republic and the First Vice President shall be immune from any legal proceedings and shall not be charged or sued in any court of law during their tenure of office. (2) Notwithstanding sub-Article (1) above, and in case of high treason, gross violation of this Constitution or gross misconduct in relation to State affairs, the President or the First Vice President may be charged before the Constitutional 22