Denmark has entered a strategic nuclear deterrence agreement with France, as announced by Danish Prime Minister Mette Frederiksen. This cooperation aims to strengthen Europe's deterrence capabilities in response to an anticipated increase in military threats from Russia. French President Emmanuel Macron stated that France will expand its nuclear arsenal and enhance its deterrent through unprecedented cooperation with European partners, marking a significant shift in nuclear doctrine. This initiative is intended to complement, not replace, existing NATO deterrence cooperation, and will not involve placing nuclear weapons on Danish territory. The move comes amid European concerns about U.S. commitments and Russia's actions in Ukraine, prompting a greater emphasis on European self-reliance in security.