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  2. Wire obstacle - Wikipedia

    en.wikipedia.org/wiki/Wire_obstacle

    The effectiveness of any wire obstacle is greatly increased by planting anti-tank and blast antipersonnel mines in and around it. Additionally, connecting bounding anti-personnel mines (e.g. the PROM-1) to the obstacle with tripwires has the effect of booby-trapping the obstacle itself, hindering attempts to clear it.

  3. Berlin Crisis of 1961 - Wikipedia

    en.wikipedia.org/wiki/Berlin_Crisis_of_1961

    At the Vienna summit on 4 June 1961, tensions rose. Meeting with US President John F. Kennedy, Soviet Premier Nikita Khrushchev reissued the Soviet ultimatum to sign a separate peace treaty with East Germany and thus end the existing four-power agreements guaranteeing American, British, and French rights to access West Berlin and the occupation of East Berlin by Soviet forces. [1]

  4. Concertina wire - Wikipedia

    en.wikipedia.org/wiki/Concertina_wire

    Concertina wire or Dannert wire [1] is a type of barbed wire or razor wire that is formed in large coils which can be expanded like a concertina. In conjunction with plain barbed wire (and/or razor wire/tape ) and steel pickets , it is most often used to form military-style wire obstacles .

  5. Barbed Wire Sunday - Wikipedia

    en.wikipedia.org/wiki/Barbed_Wire_Sunday

    Barbed Wire Sunday (German: Stacheldrahtsonntag), is the name given to 13 August 1961, when the military and police of East Germany closed the border between East and West Berlin and began the construction of what would become the Berlin Wall. The intention of closing the border was to prevent the migration of East Germans to the West. [1]

  6. Fortifications of the inner German border - Wikipedia

    en.wikipedia.org/wiki/Fortifications_of_the...

    The outer fence was often located very close to the actual border. A further obstacle was added by placing short wooden anchor posts about 2 metres (6.6 ft) outwards from both fences. Barbed wire was strung between them to form a V-shape to hinder lateral movement by escapees. In some low-risk areas, only a single fence was installed. [20]

  7. Wiring party - Wikipedia

    en.wikipedia.org/wiki/Wiring_party

    The integration of barbed wire as an instrument of war required the formation of tactical teams, or wiring parties. Barbed wire defences needed to be maintained frequently, as shrapnel often cut the wire, or the enemy had sabotaged it during battle or the night before. Workers did not just deal with the actual wire; they also had to clear the ...

  8. Konrad Schumann - Wikipedia

    en.wikipedia.org/wiki/Konrad_Schumann

    Hans Conrad Schumann, also known as Konrad Schumann (28 March 1942 – 20 June 1998), was an East German Bereitschaftspolizist who escaped to West Germany during the construction of the Berlin Wall in 1961.

  9. Trench warfare - Wikipedia

    en.wikipedia.org/wiki/Trench_warfare

    American soldiers struggle to pass multiple lines of barbed wire. The use of lines of barbed wire, razor wire, and other wire obstacles, in belts 15 m (49 ft) deep or more, is effective in stalling infantry travelling across the battlefield. Although the barbs or razors might cause minor injuries, the purpose was to entangle the limbs of enemy ...