President Trump’s top national security advisers have recently discussed increasing the military’s involvement in border security, NBC News reports. The conversations included whether the military could be used to build tent city detention camps for migrants, with officials weighing whether the military could legally operate the camps once migrants were housed there. U.S. law prevents the military from directly interacting with migrants. Thousands of troops are currently stationed along the border, but they are mainly tasked with reinforcing existing fencing with barbed wire. Present at the Tuesday meeting was acting Defense Secretary Patrick Shanahan. Shanahan was reportedly open to sending more U.S. troops to the border—as long as their orders are within the law.