Nemesis is not only the name of the Greek goddess of revenge (divine retribution), but was also the code name for an act of human retribution: In a series of covert operations, the Armenian Revolutionary Federation had the Turkish masterminds of the Armenian genocide of 1915-1917, which resulted in the death of more than one million Armenians, assassinated from 1920 to 1922. See the Wikipedia article for details.
To this very day, the Armenian genocide is officially downplayed in Turkey, and Turkey continues to protest the formal recognition of the genocide by other countries. Wikipedia has an in-depth article on the Armenian genocide, one of the tragic events of the 20th century.
The Forty Days of Musa Dagh (1933) by Austrian novelist Franz Werfel (1890-1945) gives a fictional account of the historical events.
Posted in response to Sunday Scribblings’ smorgasbord prompt, which included the nemesis theme.
Steer Forth! 
oh it happened alright,, my best friend in high schools metzmama and metzheidig grew up in armenia and relocated to the united states sometime after the year 1917.. they lived the entirety of their lives in the shadow of what they saw as children growing up amidst the turks regime… this is a very little known genocide,, yet an important one in the world history.. i believe there are a country or two in the common era who are guilty of the same… how is it this continues to happen??? maybe it is because we are not forced to digest it.. it is glossed over.. it “doesn’t” really exist…. thank you for printing this…
When asked in 1939 about plans to invade and destroy Poland, Hitler responded, “Who remembers now the destruction of the Armenians?”