Follow latest updates at http://twitter.com/rt_com and http://www.facebook.com/RTnews Libyan leader Muammar Gaddafi vowed to fight until the end, as he made his first public appearance since the international allied operation began on Saturday. Gaddafi said his troops will be victorious in what he called a "crusader battle" - his address preceded a fourth night of air strikes. RT's Paula Slier is following developments in the capital Tripoli ...