Final answer:
After leaving SNCC in 1967, Stokely Carmichael joined the Black Panther Party which advocated for Black Nationalist ideologies and self-defense for African Americans against systemic oppression.
Step-by-step explanation:
Stokely Carmichael, a pivotal figure in the civil rights movement, became progressively disillusioned with the strategies of the Student Nonviolent Coordinating Committee (SNCC), particularly sit-ins, as he ascended to its leadership. Influenced by Black Nationalist ideologies, including those shared by Malcolm X, Carmichael advocated for a doctrine of black self-reliance and empowerment.
In 1967, following his tenure with SNCC, he joined the Black Panther Party, an organization that espoused self-defense and the establishment of African American community services to combat systematic oppression and police brutality.