The military staged a coup against the government of President Isabel Perón and put General Jorge Videla in power. He was succeeded by General Roberto Viola and then General Leopoldo Galtieri for a short while. Before he started the Falklands War, Galtieri was subject to growing opposition from the people. The actual rule of General Galtieri lasted eighteen months. In the course of 1981, Argentina saw inflation climb to over 600%; simultaneously, the GDP fell by 11.4%, manufacturing output by 22.9% and real wages by 19.2%. The trade unions were gaining more support for a general strike every day, and most ominous for the dictatorship, popular opposition to the junta was growing rapidly.