; or (B) in unclassified form and including a classified annex. 5. Notification (a) Sense of Congress It is the sense of Congress that— (1) the mission of the USSC is most effective with— (A) a general or flag officer as the head of mission; (B) a head of mission rotation of at least 3 years duration; and (C) senior uniformed personnel rotation of at least 2 years duration; and (2) the personnel contributions of other nations to the mission of the USSC are most effective with equivalent rotations. (b) In general Beginning 180 days after the date of the enactment of this Act, the Secretary of Defense shall submit written notice and justification to appropriate congressional committees and the Committee on Armed Services of the Senate and the Committee on Armed Services of the House of Representatives not later than 120 days before the date on which— (1) the head of mission of the USSC is to be replaced with a non-general or flag officer; (2) the head of mission of the USSC is to be rotated out of the head of mission's current assignment before 3 consecutive years of service in that position