ˌɑːpɚɹˈeɪʃən sˈiː ɡˈɑːɹdiən wʌz fˈɔːɹməli lˈɑːntʃt ˌɔn nˈaɪn noʊvˈɛmbɚ tˈuː θˈaʊzənd sˈɪkstiːn, mˈɑːɹkɪŋ ðɪ ˈɛnd ʌv ˈæktɪv ɛndˈɛvɚ.
Operation Sea Guardian was formally launched on 9 November 2016, marking the end of Active Endeavour.