European defence officials are actively drafting contingency plans to fortify the continent’s military capabilities against the possibility of a United States withdrawal from NATO, according to multiple sources familiar with the discussions. These blueprints, informally termed a “European NATO,” aim to ensure that command structures and deterrent capacities can be sustained independently should American security guarantees vanish. The planning signifies a profound, if reluctant, acknowledgment that the transatlantic alliance’s cornerstone may no longer be immutable.

This strategic recalibration finds its immediate catalyst in Berlin. Viewed from Washington, Germany has long been a bulwark of the status quo, consistently tempering French ambitions for European strategic autonomy in favour of reliance on American power. However, under Chancellor Friedrich Merz, that resistance has ebbed. German officials are now privately advancing the need for a robust European pillar within—or potentially beyond—the existing alliance framework, a shift that has lent critical momentum to once-marginal ideas.

The discussions unfold against a backdrop of institutional competition. From Brussels, analysts observe a growing tug-of-war between NATO and the European Union over who will steer the continent’s burgeoning defence spending and industrial policy. The EU champions greater intra-European arms production to reduce dependency, while NATO insists on preserving transatlantic supply chains and interoperability. This tension underscores a deeper question: who will define the future of European defence?

These contingency plans are being nurtured in back-channel conversations and working dinners, deliberately kept informal to avoid signalling a lack of faith in the current alliance. Officials stress the goal is to supplement, not supplant, NATO’s structures. Yet, as noted in London, the mere existence of such planning reflects a deepening European anxiety that American commitment, buffeted by domestic politics and global priorities, can no longer be taken for granted.

Looking ahead, the trajectory points towards a more self-reliant European security architecture, albeit one likely to evolve gradually. The immediate challenge is to translate discreet planning into tangible military and industrial capacity without provoking a transatlantic rift. The success of this hedging strategy will ultimately depend on Europe’s ability to forge unity and muster resources, ensuring it is prepared for any eventuality while striving to keep the ideal of a cohesive West alive.