All you have to do is...

“Naturally the common people don’t want war. But after all, it is the
leaders of a country who determine the policy, and it’s always a
simple matter to drag people along whether it is a democracy or a
fascist dictatorship, or a parliament, or a communist dictatorship.
Voice or no voice, the people can always be brought to the bidding of
the leaders. This is easy. All you have to do is tell them they are
being attacked, and denounce the pacifists for lack of patriotism and
for exposing the country to danger. It works the same in every
country.”

--- Hermann Goering, Hitler’s Reich Marshall, at the Nuremberg
Trials after World War II.