The Prespa Agreement and the use of a single name (erga omnes) for the neighboring country "was the basic prerequisite for North Macedonia to become a member of NATO; that is the reason it was not accepted in NATO all these years," Prime Minister Kyriakos Mitsotakis said during an interview to national broadcaster ERT on board the frigate 'Kimon' at the Naval Group shipyards in Lorient, France, on Thursday.