score:7
Any number of statements can be interpreted as such. Take for instance President Lyndon Johnson's speech at the John Hopkins University in 1965, shortly after regular combat troops began to be deployed to Vietnam. He bluntly asserted that:
And we do this to convince the leaders of North Vietnam, and all who seek to share their conquest, of a very simple fact: We will not be defeated.
Moreover, this was not even the only such statement in that speech. Nearer the end, he reiterated that:
Well, we will choose life. In so doing we will prevail over the enemies within man, and over the natural enemies of all mankind.