CHIEF Christian DeGroot, winch operator, on Bell AB 412 SP search and rescue (SAR) helicopter, Royal Netherlands Air Force, and Captain Kazimieras Maskoliunas, Director of Search and Rescue investigate sighting reports during a simulated search and rescue (SAR) scenario during Exercise COOPERATIVE ZENITH '97. COOPERATIVE ZENITH is one in a series of NATO sponsored "Partnership for Peace" (PfP) exercises, designed to expand political and military cooperation and understanding throughout Europe in the areas of peacekeeping, search and rescue and humanitarian operations