Marines from the Marine Corps Mounted Color Guard salute during the playing of the national anthem at the Kentcky Oaks Race May 4, as a giant television displays the image for race fans in the stands. The mounted color guard performed for crowds during the Kentucky Derby Festival May 3-5 in Louisville, Ky. - Marines from the Marine Corps Mounted Color Guard salute during the playing of the national anthem at the Kentcky Oaks Race May 4, as a giant television displays the image for race fans in the stands. The mounted color guard performed for crowds during the Kentucky Derby Festival May 3-5 in Louisville, Ky.