[1][2][3][4][5] In later years, he became a leader of the Israeli peace camp, a Communist and pacifist who supported negotiations with the Palestine Liberation Organization and concessions in the Israeli-Arab conflict.

He believed the conflict with the Palestinians would not devolve into a race war and instead be seen as Jewish paramilitaries reacting in self defense and to restore civil order.

In December 1941, Yair Stern assigned Yellin-Mor to travel to Turkey and the Balkans to recruit Jews living there for the underground in Palestine.

[9] After the assassination in September 1948 of United Nations mediator Count Folke Bernadotte, he was arrested along with Lehi member Matityahu Shmuelevitch and charged with leadership of a terrorist organization.

Aside from National Bolshevism, inspirations of this new ideology included Titoism, Irish republicanism, Maximalism, nationalistic Egoism, Stalinism, Maoism, and Italian fascism.

In a letter to Dr. Israel Eldad, Yellin-Mor stated the following regarding the ideology of Lehi:We must stress with great emphasis that we are not a Zionist movement.

For us, Zionism is dead and we no longer wish to busy ourselves trying to revive it or anything else of its kind.In 1956, Yellin-Mor, along with Boaz Evron, Uri Avnery, Shlomo ben Shlomo, Ya'akov Yardor, and others founded the left wing Canaanite group, Semitic Action, in part due to their opposition to Israel's alliances with Britain and France during their Second Israeli-Arab War.

In 1958, the group published "The Hebrew Manifesto" which "advocated that Hebrew-speaking Israelis cut their ties with the Jewish diaspora and integrate into the Middle East as natives of the region on the basis of an anticolonialist alliance with its indigenous Arab inhabitants."

In the aftermath of the Six-Day War, Natan became a staunch peace activist, called for the return of territory captured by Israel, and the establishment of a Palestinian state.

Yellin-Mor in response to the confusion from the public and his former comrades on his transition from far right extremism to far left peace activism stated on September 9, 1974, in a letter to journalist Yossi Ahimeir: In my opinion, every person must always fight for the cause he sees as central to the life of his society.

More than thirty years ago I believed with all my heart that the achievement of freedom, independence and political sovereignty was the determining factor for our future.

This is why I asked your editor to print this now, as I stand before the heavenly court, in the hope that what is being read and discussed at this moment on earth will attract the attention of the Supernal Judge.

"[25] The new Semitic Action describes itself as "an Israel-based movement seeking to unite the indigenous peoples of the Middle East against the devastating influence of foreign powers in our region and the local conflicts created by the pursuit of their interests".

[25] Since its resurrection, the movement has organized meetings between Palestinians and Israeli settlers in the West Bank,[26] initiated campaigns to raise support for an independent Kurdistan[27][28] and promoted a unified front of indigenous peoples against foreign political influences in the Middle East.

The movement has also been vocal against westernization,[29] globalization,[30] pro-Israel support from the American Christian right,[31] Islamophobia in Israeli society,[32] capitalism[33] and the funding of local political organizations by foreign governments.

[34][35] The VISION Movement, which subscribes to the ideology of Hebrew Universalism, also draws inspiration from Natan Yellin-Mor and other Lehi veteran ideologues.