Iraqi troops seize main bridge, advance on mosque in battle for Mosul

By Patrick Markey and John DavisonMOSUL, Iraq (Reuters) - Iraqi government forces battling Islamic State for Mosul took control of a main bridge over the Tigris river on Wednesday and advanced towards the mosque where the group's leader declared a caliphate in 2014, federal police said.The seizure of the Iron Bridge, linking eastern Mosul with the militant-held Old City on the west side, means the government holds three of the five bridges over the Tigris and bolsters Prime Minister Haider al-Ab