Dr. Ralf Roloff, senior German professor at the George C. Marshall European Center for Security Studies, talks about what international security policy means and what subjects are taught in this German-American educational institution to a combination class of 3rd and 4th graders from the German elementary school Gröben Schule at the Marshall Center in Garmisch-Partenkirchen, July 15. (DoD photo by Christine June/RELEASED)