 Complete the following phrase:  Cher has been a vocal supporter of American soldiers and returning veterans. She has contributed resources to Operation Helmet, an organization that provides free helmet upgrade kits to troops in Iraq and Afghanistan. She has contributed to the Intrepid Fallen Heroes Fund, which serves military personnel who have been disabled in operations in Iraq and Afghanistan, and those severely injured in other operations. In 1993, she participated in a humanitarian effort in Armenia, taking food and medical supplies to the 