In 1977, Libya officially became the "Great Socialist People's Libyan Arab Jamahiriya". Gaddafi officially passed power to the General People's Committees and henceforth claimed to be no more than a symbolic figurehead, but domestic and international critics claimed the reforms gave him virtually unlimited power. Dissidents against the new system were not tolerated, with punitive actions including capital punishment authorized by Gaddafi himself. The new ""jamahiriya"" governance structure he established was officially referred to as a form of direct democracy, though the government refused to publish election results. Later that same year, Libya and Egypt fought a four-day border war that came to be known as the Libyan-Egyptian War, both nations agreed to a ceasefire under the mediation of the Algerian president Houari Boumediène. In February 1977, Libya began to provide military supplies to Goukouni Oueddei and the People's Armed Forces in Chad. The Chadian–Libyan conflict began in earnest when Libya's support of rebel forces in northern Chad escalated into an invasion. Much of the country's income from oil, which soared in the 1970s, was spent on arms purchases and on sponsoring dozens of rebels groups around the world. An airstrike failed to kill Gaddafi in 1986. Libya was accused in the 1988 bombing of Pan Am Flight 103 over Lockerbie, Scotland and the 1989 bombing of UTA Flight 772 over Chad and Niger; Libya was finally put under United Nations sanctions in 1992. Gaddafi financed various other groups from anti-nuclear movements to Australian trade unions.