Mezue ahịrịokwu na-esonụ: A tọhapụrụ ya n'ụlọ mkpọrọ n'afọ 1960 n'ihi mgbaghara e meere ya. Ya na nwunye ya kwagara United Kingdom na-eso mbuso agha Warsaw Pact nke Czechoslovakia na 1968, nke meriri Prague Spring. Krejci ghọrọ prọfesọ mmụta mmekọrịta ọha na eze na Mahadum Lancaster. Ọ kụziri na ngalaba mahadum nke French Studies, German Studies na Religious Studies site na 1969 ruo 1983. Ọtụtụ n'ime nyocha ya lekwasịrị anya n'akụkọ ihe mere eme na nhazi nke mmepeanya site na usoro macrosociological. Ọ laghachiri na Czechoslovakia na Czech Republic na-esote
ọdịda nke ọchịchị Kọmunist na-akụzi na Mahadum Charles na Prague na Mahadum Palacký, Olomouc, yana Diplomatic Academy nke Vienna.