Trying to live as normal a life as possible in the wake of Israel’s onslaught, children in the Gaza Strip have been returning to the classroom today.Schools run by the United Nations have reopened for the first time since the start of the 22-day Israeli campaign against Hamas militants. Caught up in the conflict, Gaza’s youngest inhabitants were among its casualties. The UN says more than 400 children were among the 1,300 Palestinians killed, with more than 1,800 youngsters injured. Israel said it launched the bombardments to counter cross-border rocket attacks from the territory. A total of 13 Israelis died in the fighting; 10 soldiers and three civilians hit by rocket fire. Many Gazans fleeing battle zones took refuge in UN-run schools. But a number of the buildings were also hit during Israel’s offensive. In one incident, some 40 Palestinian civilians died.