Greco-Turkish War (1919–1922) World War II The III Hellenic Army Corps / NATO Rapid Deployable Corps – Greece, abbreviated NRDC-GR (Greek: Γ' Σωμα Στρατού), is an operational headquarters of the Hellenic Army, intended for the direction of international operations undertaken by the European Union and NATO.

NDC-GR HQ will be declared to NATO and will be placed under OPCOM to SACEUR once the North Atlantic Council has agreed upon a mission.

The entente powers demanded and secured the withdrawal of the loyalist formations to Thessaly, where III Corps was based in Tsaritsaina, and after the Noemvriana even further south to the Peloponnese.

The corps remained there until June 1917, when Greece, reunified under Eleftherios Venizelos, formally entered World War I on the side of the entente.

It participated in the ongoing Greek Civil War (1946–49), with a zone of responsibility covering most of northern Greece, from the Kaimakchalan—Mount Vermion—Mount Olympus line in the west to the border with Turkey in the east.

[1] With the reorganization of the army after the end of the civil war, the III Corps, still headquartered at Thessaloniki, assumed responsibility for the defence of northeastern Greece east of the Axios River.