Several candidates at the first Republican debate held Wednesday advocated sending more active-duty troops to work along the U.S. border with Mexico.
Despite a growing split among Republicans, a conservative ad campaign is encouraging GOP voters and officials to continue backing Ukraine.
Military relations with Mexico currently fall under the purview of U.S. Northern Command.
"What is also really, really interesting about our Army as we go forward in this data-centric environment is people are going to do different things."
