"blocking unit" meaning in English

{
  "forms": [
    {
      "form": "blocking units",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "blocking unit (plural blocking units)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Military",
          "orig": "en:Military",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2015 April 28, Jochen Hellbeck, Stalingrad: The City that Defeated the Third Reich, PublicAffairs, page 58",
          "text": "The blocking unit of the 62nd Army contained the retreat of these units and restored the position.",
          "type": "quotation"
        },
        {
          "ref": "2017 November 9, Dan Reiter, The Sword's Other Edge: Trade-offs in the Pursuit of Military Effectiveness, Cambridge University Press, page 92",
          "text": "There were 87 recorded instances of blocking unit deployment in 483 pre–World War I observations[…]",
          "type": "quotation"
        },
        {
          "ref": "2020, Alex Halberstadt, Young Heroes of the Soviet Union: A Memoir and a Reckoning, Random House, page 51",
          "text": "Dug in near Smolensk, he was a member of an NKVD blocking unit that marched behind the front lines. It was an innovation of the Soviet secret police designed to deter potential deserters,[…]",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A unit of barrier troops; a military unit deployed behind or at the front line to shoot or otherwise prevent members of that military who attempt to desert."
      ],
      "id": "en-blocking_unit-en-noun-lpYV2sLn",
      "links": [
        [
          "barrier troops",
          "barrier troops"
        ],
        [
          "front line",
          "front line"
        ],
        [
          "desert",
          "desert"
        ]
      ]
    }
  ],
  "word": "blocking unit"
}

{
  "forms": [
    {
      "form": "blocking units",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "blocking unit (plural blocking units)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "en:Military"
      ],
      "examples": [
        {
          "ref": "2015 April 28, Jochen Hellbeck, Stalingrad: The City that Defeated the Third Reich, PublicAffairs, page 58",
          "text": "The blocking unit of the 62nd Army contained the retreat of these units and restored the position.",
          "type": "quotation"
        },
        {
          "ref": "2017 November 9, Dan Reiter, The Sword's Other Edge: Trade-offs in the Pursuit of Military Effectiveness, Cambridge University Press, page 92",
          "text": "There were 87 recorded instances of blocking unit deployment in 483 pre–World War I observations[…]",
          "type": "quotation"
        },
        {
          "ref": "2020, Alex Halberstadt, Young Heroes of the Soviet Union: A Memoir and a Reckoning, Random House, page 51",
          "text": "Dug in near Smolensk, he was a member of an NKVD blocking unit that marched behind the front lines. It was an innovation of the Soviet secret police designed to deter potential deserters,[…]",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A unit of barrier troops; a military unit deployed behind or at the front line to shoot or otherwise prevent members of that military who attempt to desert."
      ],
      "links": [
        [
          "barrier troops",
          "barrier troops"
        ],
        [
          "front line",
          "front line"
        ],
        [
          "desert",
          "desert"
        ]
      ]
    }
  ],
  "word": "blocking unit"
}