This chapter examines Japan’s role in the Turkish peace settlement, spanning from the Paris Peace Conference to the 1923 Treaty of Lausanne. It argues that Japan’s diplomacy was driven primarily by a desire to confirm its ‘Great Power’ identity within the Eurocentric international order. While Japan initially demanded capitulations to match Western privileges, this study demonstrates that the ultimate objective was status equality rather than the specific rights themselves. Consequently, the abolition of capitulations was not a diplomatic failure. Instead, by securing a permanent seat on the Straits Commission alongside Britain, France, and Italy, Japan institutionalized its position as an equal global player. The chapter concludes that the true ‘victory’ at Lausanne lay in this confirmation of parity, proving that for Japan, international status took precedence over imperial privileges.