Provide the highlights for the following article: BAGHDAD, Iraq (CNN) -- Twelve-year-old NAME_1, his right leg severed below the knee, maneuvers on crutches over the dirt and loose stones through the Falluja graveyard. NAME_1 sitting with his mother, NAME_2, eagerly awaits his trip to the United States. Row after row of headstones stand as the deadly reminder of the tragedy the city went through as insurgents battled for control of the city. NAME_3 stops at his cousin's grave. "I feel an ache when I think of her. Every time I remember her, I cry," he told CNN at a visit to the grave a few months ago. As he spoke, he poured water on a tree he planted next to it. The headstone reads: "Martyr 643, the child NAME_4, 13 October 2006." Clutching her photograph, NAME_3 says, "My cousin died on the scene. I still remember her screams." The same explosion cost him his leg and his childhood. "A car came out of nowhere. My cousin was playing with her friend," he says. "I remember [the car] was green. It detonated."  NAME_5 tell his story. His mother, NAME_2, remembers that day all too well. She was in the kitchen when she heard a deafening explosion. "There was shattered glass from the windows falling all over us. I went outside and saw my son covered in blood from head to toe," she says. Her son endured 11 operations before doctors amputated his leg below the knee. NAME_6 says her son put forward a tough face, but when he finally went back home the shock hit him. "That's where his personality started to change. He stopped laughing," she says. "It was tearing me up," NAME_3 says "It was hard for me to watch others play. And I couldn't, I couldn't walk, it agitated me." CNN first broadcast his story in May where it caught the attention of an American charity, the Global Medical Relief Fund, which offered to help. "I cannot put my feelings into words," NAME_6 says. "An entire book would not be enough. They gave my son his hope back. The America we knew was one that came, bombed, harmed. But when this organization came forward, we saw another face of America." The Global Medical Relief Fund, a small charity based in New York that helps children of war and natural disasters, has arranged for surgery and treatment at the Shriners Children Hospital in Philadelphia, Pennsylvania. NAME_7, the founder and director of the organization, says she was inspired to act when she first heard of NAME_3's tragic story. "I said, 'Oh, please, let me help this boy.' " NAME_3