UK's Foreign Secretary in Poland [Getty Images]

UK'sForeign Secretary, Boris Johnson at Belweder Palace in Warsaw, Poland on 3 September 2016 (Photo by Mateusz Wlodarczyk/NurPhoto via Getty Images) — see more

UK'sForeign Secretary, Boris Johnson at Belweder Palace in Warsaw, Poland on 3 September 2016 (Photo by Mateusz Wlodarczyk/NurPhoto via Getty Images)

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