"There were some in South Vietnam who wished to force Communist rule on their own people. But their progress was slight. Their hope of success was dim. Then, little more than six years ago, North Vietnam decided on conquest. And from that day to this, soldiers and supplies have moved from North to South in a swelling stream that is swallowing the remnants of revolution in aggression. As the assault mounted, our choice gradually became clear. We could leave, abandoning South Vietnam to its attackers and to certain conquest, or we could stay and fight beside the people of South Vietnam."