By Jack Mendel Lord David Cameron has urged Israel to “stop and think seriously” before continuing its military offensive in southern Gaza. The foreign secretary made his appeal to Israel after it launched a deadly assault on the south of the territory overnight bordering Egypt, killing scores of civilians. Israel announced that during the operation, two hostages, taken by terror group Hamas during its 7 October assault, had been freed. The country also signalled its intention to launch a ground offensive in the area, which is currently populated by up to a million refugees, half of Gaza’s pop…