Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Marches Begin to Mark Colombia's Third National Strike Reuters BOGOTA, COLOMBIA - Colombian unions and student groups held a third national strike Wednesday amid fraught talks between protest leaders and the government over President Ivan Duque's social and economic policies. The strike was the latest demonstration in two weeks of protests, which have drawn hundreds of thousands of marchers and put pressure on Duque's proposed tax reform, which lowers duties on businesses. The protests prompted him to announce a "great national dialogue" on social issues, but government efforts to stop new demonstrations have failed as the union-led National Strike Committee has stuck firmly to demands for one-on-one talks and refused to call off protests. .