As the Vatican City is an enclave within Italy, its military defence is provided by the Italian Armed Forces. However, there is no formal defence treaty with Italy, as the Vatican City is a neutral state. Vatican City has no armed forces of its own, although the Swiss Guard is a military corps of the Holy See responsible for the personal security of the Pope, and residents in the state. Soldiers of the Swiss Guard are entitled to hold Vatican City State passports and nationality. Swiss mercenaries were historically recruited by Popes as part of an army for the Papal States, and the Pontifical Swiss Guard was founded by Pope Julius II on 22 January 1506 as the pope's personal bodyguard and continues to fulfill that function. It is listed in the "Annuario Pontificio" under "Holy See", not under "State of Vatican City". At the end of 2005, the Guard had 134 members. Recruitment is arranged by a special agreement between the Holy See and Switzerland. All recruits must be Catholic, unmarried males with Swiss citizenship who have completed their basic training with the Swiss Armed Forces with certificates of good conduct, be between the ages of 19 and 30, and be at least in height. Members are equipped with small arms and the traditional halberd (also called the Swiss voulge), and trained in bodyguarding tactics. The Palatine Guard and the Noble Guard, the last armed forces of the Vatican City State, were disbanded by Pope Paul VI in 1970. As Vatican City has listed every building in its territory on the International Register of Cultural Property under Special Protection, the Hague Convention for the Protection of Cultural Property in the Event of Armed Conflict theoretically renders it immune to armed attack.