Orders, decorations, and medals of the Holy See of the Catholic Church by his authority as head of the Holy See and sovereign of the Vatican City State. Historically, membership in these orders was either conferred by Papal bulls not signed by the Pope or by apostolic letters signed by the Pope himself. Since the reforms of these orders in the beginning of the 20th century, the diplomas have been signed by the Cardinal Secretary of State. In general, "Papal orders of knighthood" refers to the five equestrian orders of the Holy See awarded directly by the Supreme Pontiff as head of the Catholic Church, Holy See and
Foreign relations of the Holy See for Relations with States. The Holy See recognizes all UN member states, except for the People's Republic of China (as the Holy See only recognizes the Republic of China) and North Korea (as the Holy See only has relations with South Korea). The Holy See also recognizes the State of Palestine, the only other non-UN member it recognizes besides Taiwan (ROC). The term "Vatican Diplomatic Corps", by contrast with the diplomatic service of the Holy See, properly refers to all those diplomats "accredited to the Holy See", not those who represent its interests to other nations and international bodies. Since