Teens from across the world who lost loved ones due to terrorism gathered for the 10 day camp to share their feelings, insights and a chance to be the world’s next generation of international peacemakers.

On a windowsill at a Massachusetts boarding school, a white candle burned in memory of a man who died half a world away in Argentina.

The man’s daughter, Astrid Malamud, was a toddler when it happened.

On Wednesday, 18 years later, Malamud, who barely remembers her father’s face, was far from home as she marked the anniversary of his death in their homeland’s bloodiest-ever terrorist attack. But the 20-year-old Argentine university student was still close to people who understood her loss.

Beside Malamud’s candle, a second wick burned to commemorate another of the 85 victims of the July 18, 1994, bombing at the Argentine Israeli Mutual Association in Buenos Aires. That man’s daughter also was nearby, as were more than 70 other teenagers and young adults who lost family members to terrorism.

They came from the United States and 15 other countries, gathering at Governor’s Academy, about 30 miles north of Boston, for a summer camp known as Project Common Bond. The program, now in its fifth year, is part of the New York-based nonprofit Tuesday’s Children, which helps families of victims of the Sept. 11, 2001, terrorist attacks.

The nonprofit’s executive director, Terry Sears, said Wednesday that the camp is a way for the children of Sept. 11 victims to reach out to children around the world who’ve suffered similar losses. She and other organizers said it’s a chance for participants to heal and to work on becoming the world’s next generation of peacemakers.

The curriculum design comes in part from a mediation and negotiation program at Harvard Law School. It’s meant to teach conflict resolution and leadership skills that campers can take home to do projects that make a difference in their communities.

Campers, ranging from 15 to 20 years old and some attending with the help of scholarship money, said it’s also a chance to be around others their age who understand them. As they sat talking Wednesday below the flags of their countries, each had a story of a childhood that changed because of a loved one who was lost.

READ MORE: Click below