(Reuters) – President Vladimir Putin issued a decree on Thursday allowing foreign nationals who fight for Russia in Ukraine to obtain Russian citizenship for themselves and their families. The order said people who have signed contracts during what Moscow calls its “special military operation” in Ukraine can apply to get Russian passports for themselves and their spouses, children and parents. They must provide documents showing that they signed up for a minimum of one year. Those eligible include people who have signed contracts with the regular armed forces or other “military formations” – a…