Hungary’s Prime Minister Viktor Orban arrived in Ukraine on Tuesday for a surprise visit to the war-torn country by the EU and NATO’s most vocal critic of Western support for Kyiv. Orban has not visited Kyiv since Russia invaded in February 2022 and has publicly hit out at Europe’s financial and military aid, temporarily blocking a 50-billion euro ($53.5 billion) aid package for weeks. The nationalist leader, in power since 2010, has also blasted Brussels’ move to open formal membership talks with Kyiv — though he abstained rather than vetoing it — and has been accused of maintaining warm rela…