The US state of Texas is deploying National Guard members to the border with Mexico following a call from President Donald Trump.
A Guard spokesman said 250 personnel would be sent to patrol the area within the next 72 hours.
Arizona is also planning to deploy 150 troops there next week.
President Trump says he wants to send up to 4,000 National Guard members to secure the border with Mexico, until his proposed border wall is built.
Trump promised in his election campaign to build The Wall and he seems to be backing up his rhetoric as various companies have made bids to build it. In the meantime, Trump is sending troops down to the border with Mexico.
Many of the stories in the media are about how silly this is, to build walls and militarise the border, but for those living near the border, they fully support Trump's moves.
I've never been to Mexico, but I have been at the southern tip of California and Arizona and the small towns that are dotted along the border are very isolated, literally in some cases as there is hundreds of miles between towns. The people that live in these towns say they are being threatened by Mexican drug gangs and besieged by Mexican immigration.
Is Trump right to the build The Wall?