ALEPPO, Syria — When I first met Nidal a few years ago, he was an amiable and unassuming guy. He worked afternoons at a private company to make ends meet, just like most chronically underpaid civil servants in Syria. There was nothing exceptional or extraordinary about him; he was just another casual acquaintance. Fast forward to today, what a remarkable difference a few years and a civil war can make. Sitting across from me in a trendy café in west Aleppo in May, he told me of his rise to prominent commander in the Baath Brigades and boasted of his exploits, battles and victories.