"They shall not pass" (catalan: "No passaran!", French: "Ils ne passeront pas", German: "Sie kommen nicht urch!", Spanish: "¡No pasarán!") is a propaganda slogan used to express determination to defend a position against an enemy. It was most famously used during the Battle of Verdun in World War I by French General Robert Nivelle (although some have attributed it to his commander, Philippe Pétain). It appears on propaganda posters, such as that by Maurice Neumont after the Second Battle of the Marne, which was later adopted on uniform badges by units manning the Maginot Line.