TRIPOLI - Libyan leader Muammar Gaddafi lashed out on Tuesday at backers of a no-fly zone over his country and urged Libyans to take up arms and prepare to confront a possible invasion by Western powers."France now raises its head and says that it will strike Libya," Gaddafi told a gathering of supporters at his Bab al-Azizia fortified compound in central Tripoli."Strike Libya?" he asked. "We'll be the one who strikes you! We struck you in Algeria, in Vietnam. You want to strike us? Come and give it a try."The speech was carried as world powers wrangled over a draft resolution on imposing a no-fly zone over Libya to prevent Gaddafi's advancing forces from using their air superiority to take the rebel capital Benghazi in the east.