Against the backdrop of the threat to European security posed by Russia's war of aggression in Ukraine, France is reaffirming its commitment to its allies on Europe's eastern flank. With a military presence in the region, it is helping to strengthen their deterrence and defence posture. This note places this support within the more general framework of defence relations between France and the States on Europe's eastern flank. It shows that, despite historically divergent strategic priorities, closer defence ties between these countries are both possible and desirable.