The Houthis have launched a new offensive, probably with the aim of taking the Bab Al-Mandab Strait. An Iranian spokesperson said the Houthis are independent and do not take orders from anyone. But any observer knows this is not true. The Houthis could not have carried out this offensive without Iranian military and logistical support. Tehran wants to put pressure on the global economy ahead of the American midterm elections — but Bab Al-Mandab is a red line it should be careful not to cross.Ira