The Middle East teeters on the brink of a regional war, 300 days into the conflict in Gaza. Three high-profile political assassinations have sent shockwaves through the region, casting a long shadow over the already volatile landscape. The killing of Hamas's top military commander, Muhammad Dave, remains unconfirmed, yet the Israeli government's claim of responsibility has sown seeds of tension. But this is just one piece of a larger, more sinister puzzle.