Embassy of the United States to the Holy See to the Holy See, previously located on Aventine Hill, moved to new headquarters in September 2015 in a separate building on the same compound as the United States Embassy Rome. Embassy of the United States to the Holy See The Embassy of the United States of America to the Holy See (or Embassy Vatican for short) is the diplomatic mission of United States of America to the Holy See, a term referring to the central government and universal reach of the Roman Catholic Church. The current embassy moved to new headquarters in September 2015 in a separate building on the
Holy See–Italy relations The new Italian Republic established in 1946 recognize freedom of religion. However, under Pius XII and Paul VI, the Christian Democrats thrived and had great influence on Italian politics, in order to stop the Italian Communist Party get into power. Due to the size of the Vatican City State, embassies accredited to the Holy See are based on Italian territory. Treaties signed between Italy and the Vatican City State permit such embassages. The Embassy of Italy to the Holy See is unique amongst foreign embassages in that it is the only embassy based on its home territory. The Holy See