This is a personal project by @dellsystem. I built this to
help me retain
information from the books I'm reading.
Source code on GitHub
a reference to Janos Kadar, a Hungarian communist leader who assumed power in 1956 with the putative support but not the trust of the Soviet Union (I think)
the risk of an encircling that would lead to the Kadarization of Europe
I think in this case it means all of Europe would become a Soviet Union puppet state?