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–European Union relations City state, which is tied to the mission of the Holy See, has little to do with the objectives of the EU Treaty. Thus EU membership is not discussed, even though it is in the heart of an EU member state. Holy See–European Union relations Holy See–European Union relations is the relationship between the European Union (EU) and the Holy See (or Vatican City). This is framed by the Holy See's geography (within an EU state capital) while being unable to join. According to the EU's Copenhagen criteria which define what states are eligible to join the EU, a candidate