World 
Libya, a former Italian colony, gained independence in 1952 from UN trusteeship. After the discovery of major petroleum deposits on its territory in the end of the 1950s, it became one of the richest countries in Africa. In 1969, Colonel Muammar Guaddafi overthrew King Idris who had governed the country since independence. Gaddafi established an authoritarian government under his leadership and preserved his hold on power into the 21st century. In the mid 1970s, Libya occupied and annexed the uranium-rich Aouzou Strip in northern Chad adjacent to the southern Libyan border. The strip was claimed by Gaddafi on the grounds of a treaty between the former colonial powers, Italy and France in 1935, which had never been ratified though. Libya was forced to withdraw, when it was defeated in a short interstate conflict with Chad in 1987.
In the years preceding this interstate conflict Libya had been involved in the intrastate conflict in Chad as a secondary warring party. It alternately supported various Chadian non-state groups and the government. Libyan troops also backed the government of Uganda, from 1978 to 1979, and the Central African government, in 2001.
In 2011, Libya experienced, as a part of the regional movement named the Arab Spring, intrastate conflict when oppositional groups joined efforts and fought to oust Gaddafi.
Since 1946 Libya has experienced the interstate, intrastate and one-sided categories of UCDP organised violence.