Greek People's Liberation Army
Georgios Siantos (nicknames: "Geros" "Old man", "Theios" "Uncle"; ; 1890 – 20 May 1947) was a prominent figure of the Communist Party of Greece (Greek: Κομμουνιστικό Κόμμα Ελλάδας, Kommunistiko Komma Elladas, KKE) who served as acting general secretary of the party and as a leader of the National Liberation Front (EAM)/Greek People's Liberation Army (ELAS) Resistance movement during the German occupation of Greece in World War II.