President Trump has ordered the deployment of 1,500 active-duty troops to the southern U.S. border to aid in immigration enforcement following a national emergency declaration. Troops will assist Customs and Border Protection in constructing barriers, monitoring border activities, and supporting deportation flights for over 5,000 detained immigrants. The move increases total active-duty military personnel at the border to about 4,000, with potential for an additional 10,000 troops to be deployed in future missions. This initiative coincides with the recent passage of the Laken Riley Act aimed at detaining undocumented immigrants.