The USS Chicago refers to several ships in the United States Navy, named after the city of Chicago, Illinois. The most notable was the USS Chicago (CA-29), a heavy cruiser commissioned in 1931, which served during World War II. It participated in numerous battles in the Pacific Theater and was known for its resilience and firepower. Another significant vessel was the USS Chicago (SSN-721), a nuclear-powered attack submarine commissioned in 1986. This submarine was designed for anti-submarine warfare and intelligence gathering, showcasing advanced technology and stealth capabilities. Both ships reflect the naval history and strategic importance of the Chicago name.