"They shall not pass" is a slogan, notably used by France in World War I, to express a determination to defend a position against an enemy. Its Spanish-language form was also used as an anti-fascist s
On ne passe pas ! The 1918 French propaganda poster by Maurice Neumont that reads: "Twice I have stood and vanquished on the Marne. Brother civilian, the underhand offensive of 'white peace' will attack you in turn; and like me you must stand firm and vanquish. Be strong and shrewd. Beware of Boche hypocrisy."