article_snippet: Britain has evacuated Britain last .
article_snippet: US forces evacuated al Annad airbase near the southern city of al Houta, which was captured by al Qaeda militants on Friday.
article_snippet: British counterparts are understood to have been airlifted from the Yemeni capital over the weekend.
article_snippet: Britain withdrew staff from Britain embassy in Yemen last month . and temporarily suspended operations there as  northern-based Houthi rebels continued northern-based Houthi rebels march south.
highlights_snippet: Troops airlifted from capital Sana'a amid deteriorating security situation .
  
highlights_snippet: US evacuated US own remaining personnel on Saturday, official confirmed .
  