What were the enforcement acts? acts proposed by grant but opposed by congress to enforce the provisions of the thirteenth amendment acts recommended by grant and imposed by congress to try to enforce the provisions of the thirteenth, fourteenth, and fifteenth amendments acts recommended by grant and imposed by congress to try to protect black voters from intimidation and violence acts imposed by congress over johnson's objections to ensure that blacks were afforded equal opportunities in education acts imposed by president johnson to enforce the provisions of the wade-davis bill