The 3rd Corps (Turkish: 3. Kolordu) is a field corps of the Turkish Army and the NATO Rapid Deployable Corps-Turkey (NRDC-T). Headquartered at Ayazaga, Şişli in Istanbul, it is part of the First Army. It was established at Kirklareli on March 14, 1911 in the Ottoman Empire. It took part in the First Balkan War, the Second Balkan War, the Gallipoli Campaign, operations in the Caucasus 1916–1917, and operations in Palestine in 1918.