Estonia on Thursday announced it would no longer issue visas or residence permits for Russian citizens wanting to study in the small Baltic country, saying the invasion of Ukraine threatened national security. The foreign ministry order also ends the practice of granting the right to short-term work to Russians or citizens of ally Belarus who had secured a visa from another European Union state. Estonia belongs to the 27-nation bloc. 🇪🇪 Estonia blocks Russian nationals from obtaining temporary residence permits or student visas. Foreign Minister Urmas Reinsalu emphasized that #Russia’s war aga…