Palestinian girls are watching distroyed classrooms at girl school Balqis al-Yaman school in Gaza City, Gaza, Thuesday, Jan. 27, 2009. Israel launched its 22-day offensive to try to halt Hamas rocket fire on southern Israel. The assault killed at least 1,285 Palestinians, more than half of them civilians, the Palestinian Center for Human Rights counted. Thirteen Israelis, including three civilians, were also killed during the fighting, Israel said.