11 Re-engagement for service.U.K.
(1)A man of a reserve force may be re-engaged for such period, beginning immediately after the end of his current term of service, as may be prescribed.
(2)A man wishing to re-engage—
(a)shall do so before being discharged, but not more than 12 months before the end of his current term of service; and
(b)on that re-engagement shall make such declaration as may be prescribed before an enlisting officer.
(3)A man who has re-engaged under this section may re-engage on a second or subsequent occasion.