Angami Zapu Phizo was the prominent leader of the movement for an independent Nagaland. He led the Naga Nationalist movement and was a key figure in the Naga insurgency against Indian rule. Phizo was associated with the Naga National Council (NNC), which sought independence for Nagaland, and he became a symbol of the Naga people's struggle for self-determination. His efforts were central to the Naga political movement in the mid-20th century.