The Turkish nation has established many states throughout its long and honorable history. In these long-lived states, it has kept a wide variety of people from different races and cultures living in peace for many years. Some of these nations separated from the Ottoman states by establishing independent states - some of them established states. They had failed in their struggle for The Turkish Nation destroyed most of the impositions on this issue with the War of Independence under the leadership of Ataturk, and the Treaty of Lausanne became the founding document of the Republic of Turkey. In this study, some events that occurred within the scope of the legal status of non-Muslim minorities were discussed. Important issues such as "Armenian problem", "Turkish-Greek Relations" and "Great Exchange", some of which are "strategic" issues for Turkey, were examined based on documents.