Israel’s Prime Minister Benjamin Netanyahu has promised that Hezbollah will pay "a heavy price" for an attack that killed 12 children at a football pitch in Majdal Shams on the Israeli-occupied Golan Heights on Saturday. The costs that Mr Netanyahu, his Defence Minister Yoav Gallant and Israel’s military chiefs decide to inflict on Hezbollah will determine whether the war either side of the Israel-Lebanon border stays limited and relatively controlled or explodes into something much worse.