Garegin Ter-Harutyunyan better known by his nom de guerre Garegin Nzhdeh (January 1886 – 21 December 1955), was an Armenian statesman and military strategist. As a member of the Armenian Revolutionary Federation, he was involved in the national liberation struggle and revolutionary activities during the First Balkan War and World War I and became one of the key political and military leaders of the First Republic of Armenia (1918–1921). He is widely admired as a charismatic national hero by Armenians.
In 1921, he was a key figure in the establishment of the Republic of Mountainous Armenia, an anti-Bolshevik state that became a key factor that led to the inclusion of the province of Syunik into Soviet Armenia. During World War II, he assisted the Armenian Legion of the Wehrmacht in the war against USSR, hoping that if Germany succeeded in conquering the USSR, they would grant Armenia independence.