Leaders of the European Union and Japan have launched an alliance aimed at boosting economic cooperation, defending free trade and countering unfair trade practices as the two sides face growing challenges from the United States and China.

By Philip Blenkinsop and Trevor Hunnicutt BRUSSELS/WASHINGTON (Reuters) -The European Union and the U.S. are moving toward a trade deal that could include a 15% U.S. baseline tariff on EU goods and possible exemptions,