At the beginning of the speech, why did king explain his reasons for speaking out against vietnam war

He explained that the civil rights movement was a peaceful one and that he would thus support all movements who preached for peace. The anti-war movement fit his beliefs because they were fighting for peace and he and his civil rights movement also fought for peace, so there was no reason for the two movements to not be allies. He explained that he doesn't support intervention in that part of the world and preached that a peaceful solution must be found.