<prompt> Translate the following text to EnglishMipaka ya Gibraltar ilifunguliwa mwaka 1985 baada ya kusimamishwa kwa miaka 16 na Hispania ilikubaliwa katika Umoja wa Ulaya mwaka 1986.  <response>: As a precondition to admission, the border with Gibraltar was reopened in 1985 after a 16-year hiatus, and Spain was admitted to the EU in 1986. 