The French first enter Chad.
The French complete their conquest of Chad and establish it as a colony.
Chad becomes an independent nation with Francois Tombalbaye as its president.
Revolts in the North become a fully-fledged guerilla war, 4 years after Tombalbaye banned all political parties.
French troops help the Tombalbaye government end the revolt, although guerilla operations continue.
The first oil pipeline is opened in Chad.
A conflict between the governments of Chad and Sudan begins, as Chad supports rebels in Sudan and Sudan supports rebels in Chad. Thousands of Sudanese refugees flee to Chad.
The parliament establishes a state oil company, the Societe des Hydrocarbures du Tchad (SHT).
Chad and Sudan sign a peace accord, agreeing to break ties with rebel clients, normalize relations, and secure the shared border through joint military cooperation. UN peacekeepers are deployed in the countries.