Iraqi forces have won a string of swift territorial gains in Mosul in the fight against the Islamic State group after months of slow progress. <br/><br/>According to a senior Iraqi officer, government troops retook the eastern edge of a third bridge in Mosul today and a cluster of buildings inside Mosul university. Iraqi forces now control the eastern sides of three of the city's five bridges that span the Tigris river connecting Mosul's east to west. <br/><br/>IS fighters overran Mosul in the summer of 2014 and became the world's wealthiest terrorist group by accessing to the city's central bank, a large taxable civilian population and nearby oilfields.