BBC News
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As the Taliban make rapid battlefield gains ahead of the US military pullout from Afghanistan, the question of who stays and who goes is once again at the top of foreign envoys' agendas.
The "final warning" on fine notepaper was delivered to me in the depth of a harsh Kabul winter at the peak of a Cold War conflict. "I must advise you that you should leave Afghanistan without delay while normal flights are still available," advised the British chargé d'affaires.
Eleven days later, on a snowy 30 January 1989, we watched the US chargé d'affaires solemnly lower the stars and stripes in a simple ceremony freighted with political meaning. The last Soviet troops were pulling out within weeks, ending their disastrous decade-long Afghan engagement. An exodus of Western missions was meant to rattle the beleaguered Moscow-backed government.