line of contact

English

Noun

line of contact (plural lines of contact)

  1. (military) The demarcation between two or more given armies, whether they are allied or belligerent.
    Synonym: contact line
    • 2021 December 10, Luke Harding, “‘Nobody wants to be Putin’s slave’: on the Ukraine frontline as tensions rise”, in The Guardian[1]:
      Both sides face off along a fixed 250-mile “border”, or line of contact, which snakes across Ukraine’s Donbas region.

Further reading