A severe social and political crisis in El Salvador during the 1970s resulted in widespread disturbance of daily life, political violence, repression and the outbreak of an insurgency. In March 1981, the government ran a large sweep operation along the border with Honduras in the north, accompanied by the use of scorched earth tactics and indiscriminate killing of anyone captured. A second offensive, launched in November 1981, was conducted in a similar fashion, and resulted in the massacre of hundreds of civilians by government troops. Under pressure, the insurgency of the Farabundo Marti National Liberation Front (FMLN) called for a peace settlement and the establishment of a government of broad participation. Elections in 1982 were interrupted by a campaign of assassinations by right-wing paramilitaries, which prompted the FMLN to return to arms and hit back with a vicious campaign of attacks on military and economic targets - including Ilopango Air Base, which was heavily hit in