Japan’s growing strategic partnership with Vietnam is putting Tokyo’s commitment to a rules-based regional order under scrutiny, as Prime Minister Sanae Takaichi faces calls to press Hanoi over its failure to honour labour rights commitments. The issue is expected to surface during Vietnamese President To Lam’s four-day visit to Tokyo from Sunday, raising questions about how far Japan is prepared to defend the principles underpinning a major Pacific trade agreement when its economic and security...