Politician, Religious Figure. He was active in Jewish politics from before World War II to his death. He was a member of the Revisionist Zionism movement. He became a member of Lehi or the Jewish terrorist group called "Stern's Gang," before becoming a politician as a member of the first Israeli parliament, and as a pacifist, who supported negotiations with the Palestine Liberation Organization during the Israeli-Arab Conflict. Some sources consider him a "Freedom Fighter," while others a criminal. Born Nathan Friedman-Yellin in a large Jewish neighborhood, he had no memory of his father, as his father was drafted into the Russian Army during World War I, never returning from war. At that point, his mother moved him and two siblings to his grandparents' home. Finally in 1920, his widowed mother learned the details of his father's death. A Lithuanian scholar taught him Jewish law and tradition as well as the Hebrew language, the canonical collection of 24 Jewish texts, and mathematics. Later, he went to a Jewish school. In 1932, he finished his studies and assumed the responsibility of the Polish branches of the youth Revisionist Zionism movement, Beitar. In 1933 he went to Warsaw to attend Warsaw Polytechnic's structural engineering program. He remained active in several Jewish organizations and by the summer of 1937, he had moved into a more zealous way of thinking as he was introduced to Avraham "Yair" Stern, who was then establishing IZL's "nationalist cells." At his point, he would dedicate his life to the Hebrew liberation movement in Eretz Israel. He and Stern were co-editors of the political newspaper "The Action." In 1939 he married Frieda Morin, and the couple escaped the Nazi forces in war-torn Poland for Israel by the way of Lithuania to Turkey. At times they traveled by foot going to Syria then Lebanon, before reaching Eretz Israel on January 8, 1941. As an engineer, he worked to build airfields in British-controlled Palestine near the Turkish border. Stern sent him on a mission to recruit Jewish inhabitants for their cause. After being arrested in Syria, he was brought back to Palestine, where he was put into detention camps by the British. He was part of the 20 inmates, who dug a 74-meter-long tunnel and escaped the camp in 1943. After Stern's 1942 murder, he became the guiding force for "Stern's Gang." His wife was arrested and found guilty of her involvement with the group, serving five years in prison, being released in 1947. He is credited with helping to plan the assassination of Walter Guinness, 1st Baron Moyne, who was appointed the Deputy Resident Minister of State in Cairo from August of 1942 until his death in January of 1944 along with being a member of the family of the Guinness brewing fortune. He is credited with being part of the April 9, 1948, Deir Yassin massacre, where 107 Arabs were killed, including women and children. On September 17, 1948, the Swedish Count Folke Bernadotte, the first United Nations mediator, and French Colonel André-Pierre were assassinated while riding in a car. With the lack of solid evidence, no one was charged with these two murders, but he and a colleague were arrested, found guilty and given an eight-year prison sentence on January 25, 1949 for being the "leadership of a terrorist organization." The same day, he was elected to the Knesset, the parliament of modern Israel. After a year in prison, the provisional State Council soon authorized his pardon. With the statute of limitations for the murders expiring in 1968, other members of the "Stern Gang" came forward with evidence on the murder of Bernadotte and he was not named as the murderer. He was not elected to a second term in parliament as his political views were changing. Though many thought he would become the leader of Israel, he went into private business. In 1956 with his enviable mastery of Hebrew, Yellin-Mor became the editor of "Etgar," or the "Challenge," a bi-weekly political-literary magazine, which ran until 1967. He recruited many young Jewish authors for articles on national interests as well as international Jewish concerns. He had changed his viewpoint to "two states for two people," which cause many of his old colleagues to turn their back on him. By 1965, he had no political contact. Tensions remained high between the governments of Arabs and the Jewish population in Israel. From June 5 to 10, 1967, war began again and ending with an Israeli victory, gaining a huge territory, which was southwest of the original State of Israel, the entire Sinai Peninsula. After the Six Day War, he became one of the leaders of the Israeli peace camp, calling for the return of the captured territories and the establishment of a Palestinian state alongside Israel. In September of 1971, he was part of a delegation that traveled to the Soviet Union. During these years, he supported New York newspapers written in Yiddish, while writing columns for various newspapers. In 1974 he published his book "Freedom Fighters of Israel – Personalities, Ideas, and Adventure." Telling the story of his escape from Poland during World War II, his autobiography, "Shnot BeTerem," or "The Years Before," was published posthumously in 1990. In the March 8, 2019 edition of "Vision Magazine," an analysis of his life was published. He and his wife had two children and two grandchildren.