Jean-Luc Melenchon, leader of France’s radical left La France Insoumise, recently insisted that French President Emmanuel Macron pull the nuclear-powered aircraft carrier Charles de Gaulle out of the Persian Gulf and redeploy it to the Mediterranean.

His stated purpose was not to deter Iran or protect international shipping, but to threaten Israel amid its operations in Lebanon. This outburst is no isolated incident. It offers a clear warning of what happens when Islamist political influence grows inside a nation that controls Europe’s only independent nuclear deterrent.