They were de-armed under the Communist rule, which rule murdered probably 65,000,000 ordinary people who were found guilty of the most trivial offenses to the new ruling 'class'.
They had enormous defecting of red army units to the Germans, which at the War's end, the 'allies' then repatriated back to the c.c.c.p. for perfunctoy torture and death or gulag slavery and death...so, millions more were 'lost' in that, also.
None the less, many contraband things were hidden by people, and, remain hidden, or sometimes are turned up.
China similarly.
I knew a guy who ten years ago, was doing some business in the former c.c.c.p.
late 'Oos 'Teens and 'Twenties Indian and Excellsior and Harley Motorcycles, ditto Buicks, Cadillacs Haines, etc of the same period, Guns, all kinds of old American things hidden in basements and deep storage, covered in old Carpets and so on..."tons" of it.
But, you gotta know a lot of ins and outs of doing 'Business' over there to get the stuff out, and or not get clipped or killed.
Former c.c.c.p. and comunist red china is all crooks and organized crime groups...far as getting anyting done or out.
Messy...