A senior Iranian official has promised a “decisive and painful” response to Israel’s air strikes on the southern suburbs of Beirut, the most serious escalation in the war in Lebanon since a ceasefire was established in mid-April. After the attack on Beirut on Sunday, Ebrahim Rezaei, the spokesperson for the Iranian parliament’s foreign policy and national security committee, wrote on X: “We will give a decisive and painful response to the Zionist regime’s attack on the suburbs ...