Pentagon officials are exploring the use of federal troops to secure the U.S.-Mexico border following President Trump’s executive order describing border threats as an invasion, which could justify a military response. The plan involves combating unlawful mass migration, narcotics trafficking, and human smuggling. U.S. Northern Command was tasked with creating a strategy within a month. Legal challenges may arise over whether such actions circumvent the Posse Comitatus Act, which limits domestic use of the armed forces for law enforcement. The order also designates drug cartels as foreign terrorist organizations, potentially broadening military engagement. Critics argue this shift could divert troops from other national security priorities and strain the military’s resources.