in which use of military force is authorized by the joint resolution or bill. (5) A specification to a date certain of the duration of the authorization for use of military force in the joint resolution or bill, which may not exceed two years from the date of the enactment of the joint resolution or bill. (b) A joint resolution or bill introduced after the date of the enactment of this section to narrow a Joint Resolution or Act authorizing use of military force that is in effect on the date of the introduction of the joint resolution or bill shall be eligible for expedited consideration in accordance with section 6(a) if the joint resolution or bill sets forth only a narrowing or other limitation of the Joint Resolution or Act as follows: (1) To narrow the specific strategic objective of the military force authorized by the Joint Resolution or Act. (2) To strike one or more named nations, organizations, or forces against which use of military force is authorized by the Joint Resolution or Act, and to specify a date certain for the effective date of such strike. (3) To strike one or more countries or subdivisions of a country in which military force is authorized for use by the Joint Resolution or Act, and to specify a date certain for the effective date of such strike. (4) To reduce the duration of the authorization for use of military force in the Joint Resolution or Act to an earlier date certain specified in the joint resolution or bill. (c) A joint resolution or bill introduced after the date of the enactment of this section only to repeal one or more Joint Resolutions or Acts authorizing use of military force that is or are in effect on the date of the introduction of the joint resolution or bill shall be eligible for expedited consideration in accordance with section 6(a). (d) A joint resolution or bill introduced as described in subsection (a) or (b) may also repeal any Joint Resolution or Act authorizing use of military force that is in effect on the date of the introduction of the joint resolution or