Mekanize Piyade Tugayı) is a brigade of the Turkish Army based in the Marmara Region at the town of Keşan in Edirne Province.

[3] It is part of the Army's 2nd Corps based at Gelibolu in Çanakkale Province, in the General Fevzi Mengüç Barracks,[4][5] and is in charge of monitoring the Greek border.

[6] During World War II, the 4th Infantry Division was based in Gallipoli.

[7] Since 1994, it has been transformed into a modern military formation as a mechanised infantry brigade.

[8] From 2016 to 2020, servicemen of the 4th Mechanised Infantry Brigade, alongside the 54th Mechanised Infantry Brigade, Edirne Police Department and Gendarmerie General Command, detained over a thousand people convicted of being part of the Gülen movement, as well as PKK and MLKP members who tried to cross the Greek border.