Main organization of protest
ANC

Part of ANC lead by Sisulu, Tambo, and Mandela in 1944
Youth League

Person that becomes president of ANC under defiance campaign
Albert Luthuli

Trials of all the leaders of ANC
rivonia trials

Communist organization closely associated with ANC, tbh detracted from ANC
SACP

Armed wing of ANC, proposed by Mandela to counteract police
MK