This Practice Note examines the special status of individuals who are members of the reserve forces, and the rights and obligations that employers have in respect of such individuals. It considers which forces comprise the reserve forces, training commitments of reservists, calling out or mobilisation of reservists, when the reservist or employer can apply for exemption from, or deferral or revocation of, mobilisation, employer incentive payments and financial assistance for employers, reservists and the self-employed. It goes on to consider a reservist’s right to reinstatement, protection from dismissal and detriment, and protection from less favourable treatment as a part-time worker. What is a military reservist? There are two main types of reservist: • volunteer reservists: civilians recruited into any of the four volunteer reserve forces (VRF)—the Royal Naval Reserve, the Royal Marines Reserve, the Army Reserve (formerly known as the Territorial Army), and the Royal Auxiliary Air Force. Reservists engage for a period of three years at which point they need to re-engage if they wish to remain members of the VRF • ex-regular reservists: former members of the regular forces