VOICED: Sarkozy marches France back into NATO command

Over 43 years after Charles de Gaulle withdrew France from NATO's military command, President Nicolas Sarkozy decided to rejoin, emphasizing the benefits for France and Europe. Despite being out of the command structure since 1966, France remained politically active and militarily involved in NATO operations. The return will see French officers in key NATO positions, although France's nuclear deterrent will stay independent.

Why is it important for France to be a joint leader in NATO according to the text?

What will be the impact of France's return on its nuclear deterrent?