Fighters from opposition groups in the southern Syrian city of Daraa Al-Balad are preparing to launch a campaign against Islamic State militants, according to reports. They have closed main and secondary roads and set up checkpoints across the city in Daraa province in preparation for a combing operation, a local source told The New Arab’s Arabic-language service Al-Araby Al-Jadeed. Tannoys across the city broadcast on Saturday that a new curfew had been imposed until further notice. The move comes amid increased clashes in the region between former opposition fighters and IS members, and rece…