observance of holy days and fasting, and observance of dress and dietary requirements. Where it is not possible to accommodate these practices for reasons of military effectiveness (or genuine occupational requirements), any restrictions should be based on clear legal authority and be proportionate. The onus should be on the armed forces to demonstrate what harm would result if the practice in question were permitted; • Ministries of defence should distribute guidance on different religious practices and on how these can be accommodated in practice in the armed forces; • States should ensure that the working environment in the armed forces is free from harassment and victimization on the grounds of religion. 97 Handbook on Human Rights and Fundamental Freedoms of Armed Forces Personnel