The Cobb Chamber will host an annual luncheon 11 a.m. May 20 at the Cobb galleria Centre to celebrate the county’s men and women in the armed forces. Dennis McCarthy, the former assistant secretary of defense for reserve affairs, will give the keynote speech and the 2013 USO Patriot of the Year Award will be presented. Information or to register: http://www.cobbchamber.org/chamber/military_affairs_luncheon.aspx