A front-line rebel position overlooks the Gaddafi-held town of Bir Ghanam in western Libya August 5, 2011. When Libyan rebels pushed government forces out of a cement plant in Bir Ghanam last month and set up a position about 80 km (50 miles) from Tripoli, victory seemed within reach. But the men -- who hold the rebel position closest to the Libyan capital -- are finding it hard to advance a few hundred metres, let alone reach Muammar Gaddafi's main stronghold. REUTERS/Bob Strong (LIBYA - Tags: CONFLICT MILITARY)