TOKYO — Britain wants to align itself more closely with Asia’s growing economies as it prepares to leave the European Union, trade secretary Liam Fox said Wednesday. The United Kingdom seeks to strike new trade pacts with countries that are becoming a larger part of its export market, he said, while also maintaining as much of its European trade as it can. “This is where we’re likely to see a lot of global growth coming over the next 10, 15 years,” he told the Associated Press during an interview in Tokyo. Fox was wrapping up a trip to the U.S.