A US Marine sets up a barricade with concertina wire, at the border between Mexico and the US, in preparation for the arrival of migrants, in Tijuana, Mexico. Photo: Reuters

Donald Trump’s troops at US-Mexico border wonder what the mission is

  • US Defence Secretary James Mattis visits troops posted at the border in Texas amid criticism their deployment was a political stunt
  • Migrants in a caravan of Central Americans arrived in Tijuana by the hundreds Wednesday
Topic |   US immigration

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A US Marine sets up a barricade with concertina wire, at the border between Mexico and the US, in preparation for the arrival of migrants, in Tijuana, Mexico. Photo: Reuters
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