As the music comes on in a Gaza refugee camp, a group of boys and girls start showing off their breakdancing moves, kicking and spinning with intense focus on their fast footwork. Two young girls grin at each other as they nailed a tricky part of the routine. It’s a rare moment of respite and catharsis amid the harsh realities of life in the Gaza Strip. The children, some wearing sliders on their feet, dance next to mangled metal rods jutting out from a mound of rubble and shattered concrete. The school that trains them is in the Nuseirat refugee camp, a crowded, built-up camp in central Gaza dating back to the 1948 Arab-Israeli war. “I come to this center because I discovered that I have a talent for breakdancing, and I also come here to release the negative energy inside me and to enjoy,” said Habiba Abu Khater, one of the children from around five to 14 years old who train at the school. She said she's been attending for four years and is happy about her progress after starting from scratch.…