Russia's invasion of Ukraine has shocked the former Soviet satellite states of Central and Eastern Europe, drawing strong condemnation even from the region's most pro-Kremlin politicians. For some of the countries that fled the Soviet bloc following a series of anti-communist revolutions more than 30 years ago, footage of tanks and troops rolling in to punish a nation trying to pursue its own independent course looks painfully familiar. Two until now major pro-Russian voices in the European Union, Czech President Milos Zeman and Hungary's Prime Minister Viktor Orban, didn't mince their words in criticizing Moscow's most aggressive action since the...