Michael H. Cunningham joined a Defense Department team on an 2017 expedition to find the site where a 1968 helicopter explosion killed three men in his unit. Another soldier was declared missing. (Michael H. Cunningham)
Michael H. Cunningham joined a Defense Department team on an 2017 expedition to find the site where a 1968 helicopter explosion killed three men in his unit. Another soldier was declared missing. (Michael H. Cunningham)