In recent times, European nations, with the use of gunpowder and other technical improvements in warfare, controlled practically the whole world. One, the British Empire, brought under one government a quarter of the earth and its inhabitants.
Our purpose in Vietnam is to prevent the success of aggression. It is not conquest, it is not empire, it is not foreign bases, it is not domination. It is, simply put, just to prevent the forceful conquest of South Vietnam by North Vietnam.
The foundation of empire is art and science. Remove them or degrade them, and the empire is no more. Empire follows art and not vice versa as Englishmen suppose.