The Quantico Brass Band performs after the closing ceremony for Chicago Marine Week 2025 at the Navy Pier, Chicago, Illinois, July 13, 2025. Marines from around the Corps and the people of Chicago attended Marine Week Chicago to celebrate the Marine Corps’ 250th anniversary, which consisted of live performances, music, ceremonies, events, and displays of equipment, and aircraft. - The Quantico Brass Band performs after the closing ceremony for Chicago Marine Week 2025 at the Navy Pier, Chicago, Illinois, July 13, 2025. Marines from around the Corps and the people of Chicago attended Marine Week Chicago to celebrate the Marine Corps’ 250th anniversary, which consisted of live performances, music, ceremonies, events, and displays of equipment, and aircraft.