The Trump administration is preparing a large-scale immigration enforcement operation in Chicago that could begin as soon as the week of Sept. 5, according to senior Department of Homeland Security officials and statements by White House border czar Tom Homan. The plan would send a “large contingent” of agents from Immigration and Customs Enforcement and Customs and Border Protection to the city, replicating tactics used in Los Angeles earlier this year. Federal planners have asked Naval Station Great Lakes, just north of Chicago, to provide logistical support, and armored vehicles are expected to be deployed, multiple outlets report. While the initiative is separate from President Donald Trump’s recent threats to dispatch the National Guard to curb violent crime, officials say troops could be placed on standby to manage any unrest that might follow the immigration raids. City and state leaders say they have received no formal notice from Washington. Illinois Governor JB Pritzker and Mayor Brandon Johnson have publicly opposed the operation, with Pritzker urging Trump not to “come to Chicago.” Police Superintendent Larry Snelling said the department is preparing to maintain order but hopes to avoid an “adversarial environment.” Immigrant-rights groups are conducting “know-your-rights” workshops, and organizers of the Pilsen Mexican Independence Day Parade set for Sept. 6 plan to proceed despite heightened anxiety. The Chicago action is part of a broader escalation targeting sanctuary jurisdictions, including New York, Los Angeles, Portland and Seattle. The White House has cited public-safety concerns, though Chicago officials note violent crime is down 21 percent so far this year, including a 33 percent drop in homicides.