Why was the Black Panther Party critical during its time of history

I need help please

The Black Panthers, also known as the Black Panther Party, was a political organization founded in 1966 by Huey Newton and Bobby Seale to challenge police brutality against the African American community. Dressed in black berets and black leather jackets, the Black Panthers organized armed citizen patrols of Oakland and other U.S. cities. At its peak in 1968, the Black Panther Party had roughly 2,000 members. The organization later declined as a result of internal tensions, deadly shootouts and FBI counterintelligence activities aimed at weakening the organization.