脱だっ国こっ境きょう

noun

weakened border; porous border; open border

Refers to a border that is not strictly controlled, allowing relatively free movement of people or goods. Often used in political or sociological contexts. Compare with 無国境 (borderless).

See also: 無国境

• EUは脱だっ国こっ境きょう化かを進すすめている。

  The EU is promoting the weakening of borders.

• 脱だっ国こっ境きょうの時じ代だいにおける安あん全ぜん保ほ障しょうを議ぎ論ろんする。

  Discuss security in an era of porous borders.