The Greek Summit, also known as OSSA, is an annual meeting of the heads of state of Greece and its neighboring countries. It is a forum for discussing issues of mutual interest and cooperation between the countries. The summit is held in a different location each year and is attended by the leaders of Greece, Albania, Bulgaria, Cyprus, North Macedonia, and Turkey. The summit is an important event for the region, as it provides an opportunity for the leaders to come together and discuss ways to improve relations and promote economic development.