Lebanon's hashish heartland of the Bekaa Valley, hit by rocket-fire from Syria on June 1, has become increasingly embroiled in the civil war raging across the border. The fertile valley, which was occupied by Syria from 1976 to 2005, is a patchwork of Sunni and Shi'ite areas, and during Lebanon's civil war in 1980s the hashish and opium trade there funded sectarian militias. There are now ominous signs of a return to this deadly rivalry. In late March, gunmen from the Sunni town of Arsal—a conduit for arms and fighters for the Syrian rebels—kidnapped a member of the powerful Shi'ite Jaafar tribe, who was absconded across the border to the rebel-held Syrian town of Yabroud, north of Damascus. The Jaafars retaliated by kidnapping six Arsal residents—ransoming them to raise the ransom money to free their comrade held in Yabroud. Lebanese security forces helped oversee the hostage exchange, and no charges were brought. Arsal has also been the target of occasional cross-border shelling, presumably by the Syrian military. On May 27, unidentified gunmen attacked a Lebanese border checkpoint near the town, killing three soldiers.