Wartime "Precision Bombing"

In the first paragraph (pg 13) we read, " This misapprehension had been in large part promoted by the American government itself. Witness a popular official pamphlet designated the bomber as The Weapon of Ultimate Victory. It bears no date, but insisting that ' America cannot lose this war! ' " What was the governments reasoning for saying that we cannot lose this war? Was it because once we entered, we had to show and prove we were superior. Another reason the government might have said that, was because it was already involved financially and now it became a special interest to the government and the economy.