An Iraqi Shi’ite militia said on Wednesday it had dispatched more than 1,000 fighters to the frontline in neighboring Syria, escalating foreign involvement in the battle for Aleppo, the biggest prize in five years of relentless civil war. New footage emerged of civilians choking in the aftermath of an apparent attack with poison chlorine gas on an opposition-held district as the battle for Syria’s biggest city approaches what could be a decisive phase. Aleppo has been divided for years into government and rebel sectors, but President Bashar al-Assad’s army has put the opposition areas under siege and now hopes to capture the whole city in what would be a devastating blow to his enemies. Government forces are backed by Russian air power and battle-hardened Lebanese and Iraqi Shi’ite militia fighters under the apparent oversight of an Iranian general. The arrival of reinforcements from Iraq, where Shi’ite militia are […]