The ruling coalition of Japanese Prime Minister Sanae Takaichi looked set to sweep the lower house election, exit polls showed on Sunday night, implying a potential defence build-up as part of a bid to double down on her stoic stance on China. Takaichi’s Liberal Democratic Party and coalition partner, the Japan Innovation Party, known as Ishin, could secure as many as 366 of the 465 seats in the more-powerful lower house, a supermajority that would ease her legislative agenda, according to...