US immigration: Trump pledges to stop illegal entry

It is 30 years since the Berlin Wall tumbled but an even bigger barrier went up five years later.

    On the anniversary of the Berlin Wall’s destruction, another of the world’s barriers has reached its own milestone.

    It is 25 years since the US first put up a fence on its border with Mexico.

    Efforts to keep people out have increased since President Donald Trump took office.

    Al Jazeera's John Holman reports from the border city of Tijuana.


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