The Madrid Protocol, together with the Madrid Agreement Concerning the International Registration of Marks, establishes the Madrid System for the international protection of marks. Unlike Italy, Turkey joined the system in 1999, signing and ratifying only the Madrid Protocol (and not the Agreement). The system provides for the possibility of filing a single international trademark application instead of multiple national applications, granting the registered international mark the same effects as a national mark.
https://www.wipo.int/wipolex/en/text/283484