Lyndon Johnson actually said...

"We have taken steps to notify our allies."

"Side by side with your South Vietnamese comrades—and our other fighting allies—you have taken the full initial weight of the enemy's winter-spring offensive; and you have now seized the initiative."

"The enemy may throw new forces into the battle."

"The promise of the Americas is to establish in this Hemisphere societies free from the fear of want, ignorance, prejudice and disease."