France's Finance Minister Bruno Le Maire says the G7 must provide a "united front" against Chinese unfair trade and industrial overcapacity, while cautioning that a trade war is to be avoided. As finance ministers and central bankers from the Group of Seven world powers meet for the first day of talks in northern Italy's Stresa, Le Maire tells journalists that "the first challenge" is to "define fair trade rules with China." IMAGES AND SOUNDBITES