Guns, tanks, and bombs were
the principal weapons of World War II, but there were other,
more subtle, forms of warfare as well. Words, posters, and
films waged a constant battle for the hearts and minds of
the American citizenry just as surely as military weapons
engaged the enemy. Persuading the American public became a
wartime industry, almost as important as the manufacturing
of bullets and planes. The Government launched an aggressive
propaganda campaign to galvanize public support, and some of
the nation's foremost intellectuals, artists, and filmmakers
became warriors on that front.