Drummond Co. said Tuesday it is confident of victory in legal battles over its Colombia operation, which has been the subject of considerable litigation…The developments have stacked up quickly this week in what has been an odyssey of litigation related to Drummond's 4,000-employee mine near La Loma, Colombia: Monday, a judge in U.S. District Court in Birmingham dismissed one civil suit filed against the company, one alleging Drummond was involved in the murders of three labor union leaders at the Colombian coal mine…Also Monday, the judge ruled that relatives of victims of violence in Colombia have until Nov. 20 to amend another suit.