that colonel moammar gadhafi's well-armed forces are on the move after them. gadhafi's son saif vowed to crush the opposition and today gadhafi's troops pounded the key oil port city of ras lanuf routing the opposition that controlled it and gadhafi's forces bombarded the city and set part of an oil refinery on fire. despite mounting international pressure against the regime, the gadhafis are vowing to retake all territory held by the opposition. yesterday they launched a violent assault to oust opposition fighters from zawiya. today our nic robertson was there as gadhafi supporters celebrated. >> reporter: well, this is completely the reverse of what we saw here about two weeks ago. this square was full of government opposition. and now it's filled with gunfire, blaring horns and the government celebrating victory. more gunfire going off. here's the truth and what happened here. look at the trees over here and