 Malcolm now encouraged Black nationalists to get involved in voter registration drives and other forms of community organizing to redefine and expand the movement.Civil rights activists became increasingly combative in the 1963 to 1964 period, seeking to defy such events as the thwarting of the Albany campaign, police repression and Ku Klux Klan terrorism in Birmingham, and the assassination of Medgar Evers.The latter's brother Charles Evers, who took over as Mississippi NAACP Field Director, told a public NAACP conference on February 15, 1964, that "non-violence won't work in Mississippi...we made up our minds...that if a white man shoots at a Negro in Mississippi, we will shoot back."