Holy See
Although the Holy See is sometimes metonymically referred to as the "Vatican", the Vatican City State was distinctively established with the Lateran Treaty (1929) between the Holy See and Italy to ensure the temporal, diplomatic, and spiritual independence of the Papacy. As such, ambassadors are officially accredited to the Holy See and not the Vatican City State. Conversely, Papal nuncios to states and international organisations are recognised as representing the Holy See and the integrity of the Catholic Church along with its 1.3 billion members, not the Vatican City State, as prescribed also in the Canon law of the Catholic Church (1983). The "Holy See" thus refers to the See of Rome viewed as the central government of the Catholic Church. The Catholic Church, in turn, is the largest non-government provider of education and health care in the world, while the diplomatic status of the Holy See facilitates the access of its vast international network of charities.
Military in Vatican City
The Pontifical Swiss Guard () was formed in 1506 by Pope Julius II. The unit was formed as the personal bodyguard of the Pope. At various points in its history the Swiss Guard has seen active service, but following the 1870 abolition of the Papal States it returned to its chief role as a bodyguard, with a limited ceremonial role, and survived into the period of the Vatican City State, as a "de facto" Vatican military unit from 1929.