It is argued in recent literature that Turkey’s contribution to peacekeeping operations, especially UN peacekeeping operations has risen between 2003 and 2017, compared to 1990 and 2002. Thanks to collected data, this book aims to find whether Turkey’s contribution to peacekeeping operations, especially UN peacekeeping operations really increased, and if there is such an increase, what the reasons for it could be. In the light of collected data, this book advocates there is an increase in Turkey’s participation in UN peacekeeping operations between 2003 and 2017, compared to 1990 and 2002.