Reserve Unit Chicago and PSU 303

**Reserve Unit Chicago** has served as a critical component of the U.S. Coast Guard Reserve presence in the Midwest since its establishment in the mid-20th century. Stationed in the strategic urban hub of Chicago, the unit has supported a range of missions, including port security, search and rescue operations on Lake Michigan, and vital homeland security exercises. Over the decades, Reserve Unit Chicago has mobilized for major national emergencies and participated in joint training with local, state, and federal agencies, reinforcing maritime safety in the Great Lakes region. **Port Security Unit (PSU) 303** was commissioned in Milwaukee, Wisconsin, in 1994 and plays a vital role in expeditionary port security missions worldwide. Specializing in harbor defense, force protection, and maritime interdiction, PSU 303 has deployed to operations in the Middle East, including supporting Operation Iraqi Freedom and Operation Enduring Freedom. The unit is composed of highly trained reservists capable of rapid deployment and has earned distinctions for its operational excellence and seamless integration with U.S. Navy and allied forces.