Operation Nemesis was the code-name for a covert operation in 1920s to assassinate the Turkish masterminds of the Armenian Genocide. The secret operation was headed by Armen Garo, Aaron Sachaklian and Shahan Natalie¹.

After the end of World War I, the Ottoman military tribunal condemned to death the principal Young Turk leaders responsible for planning and execution of the Armenian Genocide. However at the conclusion of the trials the condemned were freed. They fled to European capitals living under assumed names. In the early 1920s, the Armenian Revolutionary Federation (ARF) at their 9th World Congress held in Yerevan approved a secret resolution² called The Special Mission (Haduk Gordz) to punish the main perpetrators of the Armenian Genocide. Between 1920-1922 the perpetrators were located and felled by the Armenian avengers.

Fatali Khan Khoyski on June 19, 1920 in Tbilisi by Aram Yerganian³
Talat Pasha on March 15, 1921 in Berlin by Soghomon Tehlirian^4,5
Bihbud Khan Jivanshir on July 18, 1921 in Constantinople by Misak Torlakian⁶
Said Halim Pasha on December 5, 1921 in Rome by Arshavir Shiragian⁷
Dr. Bahaddin Sakir on April 17, 1922 in Berlin by Aram Yerganian⁸
Cemal (Jemal) Azmi on April 17, 1922 in Berlin by Arshavir Shiragian⁸
Jemal Pasha on July 25, 1922 in Tbilisi by Stepan Dzaghigian⁹
Enver Pasha in 1922 in Tajikistan by Hagop Melkumov an Armenian member of the Red Army¹⁰

Mgrditch Haroutounian in Constantinople in 1920 by Soghomon Tehlirian^11,12
Vahe Ihssan (Yessayan) in Constantinople on March 27, 1920 in Constantinople by Arshavir Shiragian¹³
Hemayag Aramiantz by Arshag Yezdanian¹⁴

Sen. Barack Obama Discusses Armenian Genocide at an Illinois breakfast briefing held on April 12, 2007