Talk about a motivated marriage. On July 26, Sgts. Maj. Bradley and Holly Prafke retired in a joint ceremony at Marine Corps Air Station New River, N.C. The Prafkes’ commitment to the Corps goes almost as deep as their commitment to each other: They retired with 30 years of service apiece under their belts, and they were together for 27 of those years. They met, according to news reports, in Camp Pendleton, Calif., when he was a lance corporal and she was a corporal. Bradley Prafke relinquished his last post, that of sergeant major for Marine Aircraft Group 29, during…