Japan could get a boost in its push for a next-generation fighter jet if Canada joins a multinational consortium backing the aircraft’s development, as Tokyo aims to narrow the gap with China’s fast-modernising air force.The Canadian government said it intended to take part in the Global Combat Air Programme (GCAP), currently involving Japan, the United Kingdom and Italy, the Asahi newspaper reported on Tuesday. Japan is planning to replace its ageing F-2 fleet with a sixth-generation stealth...