TURNBERRY, Scotland, July 27 (Reuters) - The U.S. struck a framework trade agreement with the European Union on Sunday, imposing a 15% import tariff on most EU goods - half the threatened rate - and averting a bigger trade war between the two allies that account for almost a third of global trade.

Trump said the U.S. will impose a 15% tariff on Japanese imports under the agreement, which he hailed as "maybe the largest deal in history."

That's down from the 25% levies he proposed earlier this month. Japan's prime minister says duties on autos from his nation will be cut to 15% from 25%.