Vitsyebsk gate
In Soviet and Belarusian historiography, the Vitebsk or Surazh gate (Віцебскія вароты or Суражскія вароты) was the name given to the corridor connecting Soviet and German-occupied territories during World War II. The 40 km area between Velizh and Usvyaty was a point of contact between the German Army Groups North and Centre. The gate, created by the Soviet 4th Shock Army Toropets–Kholm Offensive during the winter of 1941–42, existed from 10 February to 28 September 1942.