On June 13, active-duty U.S. Marines deployed to Los Angeles made their first known temporary detention during ongoing anti-ICE protests. The detained individual—Army veteran Marcos Leao—had unknowingly crossed a marked boundary near the Wilshire Federal Building and was restrained with zip ties before being handed over to the Department of Homeland Security, later released without charges. This marks a rare use of federal troops on civilian populations, authorized under Trump’s deployment, which also includes over 2,000 National Guard personnel securing federal sites. The move has sparked debate over the boundaries of military intervention in domestic law enforcement, raising legal and ethical concerns under the Posse Comitatus Act. As large-scale “No Kings” protests are planned nationwide this weekend, officials are warning of continued unrest and the likelihood of more military-civilian interactions on U.S. streets.