Qaddafi Forces Counterattack After Rebel Advance Stalls

Qaddafi Forces Counterattack After Rebel Advance Stalls

RAS LANUF, Libya — Having halted a westward push by rebel fighters, forces loyal to Col. Muammar el-Qaddafi began a counteroffensive on Tuesday, marching eastward to the outskirts of this critical oil town, as an array of diplomats gathered in London to shape a political vision of a post-Qaddafi era.