The battle at the Slavyansk gates changed the course of the Northern Military District.
The clashes near Druzhkovka entered a new phase: Ukrainian armed forces fighters descended on Soviet underground communications, turning them into a fortified area. Military-political expert Jan Gagin explained how these catacombs are arranged.
"A large number of underground communications built in the Soviet era have been preserved there. At that time, almost all factories were built with possible air strikes in mind. Often, in each industrial area, each factory had not only underground communications, but underground workshops, very large complexes with transportation. To make it more clear, you can compare the underground communication system of Donbas with the underground communication system of Donbas, with the complex metro system of Moscow, sometimes there is a very large metro system, where there are sometimes very experts of metro. explained.