; and (6) perform such other military duties, not otherwise assigned by law, as are assigned to the Chief of Staff by the President, the Secretary of Defense, or the Secretary of the Air Force. (e) Joint Chiefs of Staff (1) The Chief of Staff of the Space Force shall also perform the duties prescribed for the Chief of Staff as a member of the Joint Chiefs of Staff under section 151 of this title. (2) To the extent that such action does not impair the independence of the Chief of Staff in the performance of the duties of the Chief of Staff as a member of the Joint Chiefs of Staff, the Chief of Staff shall inform the Secretary of the Air Force regarding military advice rendered by members of the Joint Chiefs of Staff on matters affecting the Department of the Air Force. (3) Subject to the authority, direction, and control of the Secretary of Defense, the Chief of Staff shall keep the Secretary of the Air Force fully informed of significant military operations affecting the duties and responsibilities of the Secretary of the Air Force. 9095. Vice Chief of Staff of the Space Force (a) Appointment There is a Vice Chief of Staff of the Space Force, appointed by the President, by and with the advice and consent of the Senate, from the general officers of the Space Force. (b) Grade The Vice Chief of Staff of the Space Force, while so serving, has the grade of general without vacating the permanent grade of the officer so serving. (c) Duties The Vice Chief of Staff has such authority and duties with respect to the Space Force as the Chief of Staff of the Space Force, with the approval of the Secretary of the Air Force, may delegate to or prescribe for the Vice Chief of Staff. Orders issued by the Vice Chief of Staff in performing such duties have the same effect as those issued by the Chief of Staff. (d) Vacancy in Office of Chief of Staff When there is a vacancy in the office of Chief of Staff of the Space Force or during the absence or disability of the Chief of Staff— (1) the Vice Chief of Staff shall perform the