International donors “must fundamentally shift their approach” to aid in Syria to counter decades of manipulation by Bashar al-Assad’s regime, said a report published on Monday. The 73-page document, Rescuing Aid in Syria, outlined how the regime – accused of multiple war crimes and crimes against humanity \- used aid to reward allies and punish adversaries. Published by the Washington thinktank the Center for Strategic and International Studies (CSIS), the report stressed that a new international strategy was needed to ensure aid reached the most in need while maintaining relentless diplomati…