The Turkish military operation in Idlib Governorate (Turkish: İdlib Harekâtı), code-named Idlib De-escalation Control Force activities (Turkish: İdlib Gerginliği Azaltma Kontrol Gücü faaliyetleri) by Turkey, is an operation by the Turkish Armed Forces which started in October 2017, following the earlier Operation Euphrates Shield. It is the third cross-border operation by the Turkish military, following Operation Euphrates Shield and Operation Shah Euphrates.