The debate, totally out of place until recently, is beginning to grow due to the conjunction of several events. Donald Trump returning to the White House after having said that he will not respect the defense obligations of his allies.

The British exit from the European Union that leaves France as the only military power in the bloc. The country and Europe will be at the mercy of Russia if the only nuclear umbrella is the French one, writes P.B. Bremner. The debate is also about quantities. Between France and the United Kingdom there are about 550 atomic bombs.