Vichy France resists postwar reunification

What if Vichy France refused to rejoin France after World War II and sought NATO membership?

De Gaulle and the Western Allies would reunify France by force, making a separate Vichy state unlikely to survive.

De Gaulle would not accept a permanently divided France, and the Western Allies had already treated Vichy forces as hostile in important wartime episodes. Germany had deliberately limited Vichy's armament and military readiness, leaving a separatist regime poorly placed to resist after the Axis collapse. British, American, and possibly Italian forces could turn south once Germany was secure, while Free French units led the visible advance. French flags at the front backed by Allied armor, ammunition, food, and medical support would make reunification both politically presentable and militarily overwhelming. Limited support within Vichy territory for remaining separate would weaken resistance to reunification.