Comments by "Julia P." (@juliap.5375) on "Russian Armored Columns STEAMROLL North of Avdiivka" video.

  1.  @stevebuckley7788  Siege of Smolensk (1609-1611) — looks like was the first full scale underground (mainly) war. Smolensk represent modern huge fortress against which was impossibly to fight directly, so Polish troops built tunnels, while Russians also built tunnels under Polish tunnels and exploded them, so Polish made tunnels under Russian tunnels… 😂
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