Polkovnik
A polkovnik (Polish: pułkownik; Bulgarian, Macedonian, Russian and Ukrainian: полковник, lit. 'regimentary') is a military rank used mostly in Slavic-speaking countries which corresponds to a colonel in English-speaking states, coronel in Spanish and Portuguese-speaking states and oberst in several German-speaking and Scandinavian countries. It was originally a rank in the Polish–Lithuanian Commonwealth and the Russian Empire.