Kristy Mangos Arizona Daily Wildcat Salvidor Aleman, mechanical engineering freshman (left), and Matthew Kemp, political science freshman, are part of a group of ROTC cadets who polished the war memorial plaques in the Memorial Student Union Saturday. The cadets are members of the Arnold Air Society, an honorary service organization that is part of the Air Force ROTC. In addition to contributing to the campus, the organization has also worked with children at University Medical Center and at a car show for Casa de los Ni¥os in the past. The group plans to help at Casa Maria next week.