Celestino Migliore (born 1 July 1952) is an Italian Archbishop of the Catholic Church who serves as the Apostolic Nuncio to France.

[2] In 2007, he noted that all "Member States affirmed the collective international responsibility to protect populations from genocide, war crimes, ethnic cleansing and crimes against humanity, and their willingness to take timely and decisive collective action for this purpose, through the Security Council, when peaceful means prove inadequate and national authorities are manifestly failing to do it.

My delegation believes there is need to pursue the debate and juridical codification along this very line, wherein sovereignty is not understood as an absolute right and used as a shield against outside involvement, but as a responsibility not merely to protect citizens, but also to promote their welfare.

[3] During Migliore's tenure, on 18 April 2008, Pope Benedict XVI made a pastoral visit to the United Nations Headquarters and met with Secretary-General Ban Ki-moon and addressed the General Assembly and staff.

In September 2008, he said: Despite the growing consensus behind the responsibility to protect as a means for greater cooperation, this principle is still being invoked as a pretext for the arbitrary use of military might.

[7] Speaking on the 2008–2009 Israel–Gaza conflict, Migliore said that the Holy See "would like to express its solidarity with the civilians in those regions who bear the brunt of a cruel conflict"; "that Security Council resolution 1860, of January 8, which calls for an immediate and enduring ceasefire as well as for an unimpeded humanitarian assistance, be implemented fully"; and "that so many failed efforts are due to insufficiently courageous and coherent political will for establishing peace, from every side, and ultimately an unwillingness to come together and forge a just and lasting peace.

"The Holy See reaffirms its strong and continuing support for the NPT and calls for universal and full adherence to and compliance with the Treaty", he said.