Good find Fred T,
i wouldnt be suprised if your correct in your asumption of other similar underground complexes exsisting in former warsaw pact countrys?
I think what seems to be strange with these base networks is that they do lie undiscovered for long periods of time,lol obviously hence the title "secret tunnel networks" even when i would have thought the man power needed in their construction would have been substantial and raised some suspicions from local people living above in the city?
I also have a friend that was one of the "chiefs" in the design team that built bunkers for saddam hussein in the 80's,when the first gulf war kicked off he was taken out their with the allies to provide information regarding "weak spots" in their design,helping the allies with their "bunker buster" weapons.

Regards.

They are probally worldwide things. Tunnel networks probally exist across the globe in every country. Most of them are still secret, which is what makes them so great!
Scary what could be going on down in them though...

I heard plenty of scary stories of underground bases I.E. Dulce...

I have heard many stories about fast civilizations living in our hollow earth...

What will we find underground? or underwater?

This thing is nothing special it consists of several tunnels and bunkers for the president's family and high ranking officials. It connects the Topchider military base, with the presidents villa, maybe a hsopital, and several other objects, it has also an exit to and underground railroad line. I have persnally been to one part of this complex during 1999.

The killing of two soldiers occured if they have either seen something they shouldn't have or they have killed each other.

I'm happy to see so many people from eastblock countries...!

The russians are very open about their discoveries...very little is kept secret...

Lots of countries have underground facilities apparently built during the 50's and sixties. Even the poorest countries do.
I remember during this years hurricanes hitting the Atlantic Fidel Castro revealed his to his people, explaining they were built during the cold war and was making them available as shelter for them.