[This is an example of military secrecy. An entire town can be removed from a map. This is the type of stuff that happens all the time. Jan]

You can watch the video about it here: https://www.bbc.com/reel/video/p09zf8v2/the-invisible-soviet-town-that-suddenly-appeared-in-poland?utm_source=taboola&utm_medium=exchange&tblci=GiA50SuY7VS__xb1m99DH9NI5lgvxQTnsJEgS6HaVj8ZMSCMjFQoi7q4_uq91vtT#tblciGiA50SuY7VS__xb1m99DH9NI5lgvxQTnsJEgS6HaVj8ZMSCMjFQoi7q4_uq91vtT