N'zau Puna joined the Union of the Peoples of Angola (UPA) in 1961 and was secretary-general, political commissioner and military commander of FALA (military component of UNITA).
General Miguel Maria N'zau Puna was present in the 1974 agreements between the ruling MPLA party, and UNITA, the main opposition force, having headed the "Black Rooster" delegation at the inauguration of the Transitional Government.
He also participated in the Bicesse Accords, signed on May 31, 1991, in Estoril, by the then President of the Republic, José Eduardo dos Santos, and the leader of UNITA, Jonas Savimbi, with which it was intended to end the civil war.
In 1992, he left UNITA and founded the Tendency for Democratic Reflection (TRD), with Tony da Costa Fernandes and Georges Chicoty, former Minister of Foreign Affairs and current Secretary General of the Africa, Caribbean and Pacific group.
He was also Angola's Ambassador to Canada and deputy for the MPLA Parliamentary Group since 2008.
In June 2019, he published his autobiography entitled "Mal me Querem", where he portrayed his experiences from Jamba to Luanda, passing through Zambia, Tunisia or China, focusing on the backstage of the guerrilla, the Alvor and Bicesse Accords, the 1992 elections and the break with UNITA.
