The French policy was, and still is, that any attack on France, even conventional-only, will be answered by all-out nuclear war from day one. Their policy was also that any attack on France should be retaliated to cause at least the same amount of casualties on the attacker as the total French population, or about 60 million people. France is a lot closer to Russia so they don't need huge ICBM delivery systems. Today they have just under 300 warheads. In the late '80s they had more than 500. Easily enough to turn European Russia into a wasteland. Today most of France's nuclear weapons are carried on their four SSBNs. 16 missiles per sub with 6-10 warheads each. In the 1980s they had six SSBNs with 16 missiles each. In 2006, French President Jacques Chirac stated that France is willing to use nuclear weapons against a state attacking France via terrorist means. He noted that the French nuclear forces had been configured for this option.