The Toyota War is the name commonly given to the last phase of the Chadian–Libyan conflict, which took place in 1987 in Northern Chad and on the Libyan-Chadian border. It takes its name from the Toyota pickup trucks used as technicals to provide mobility for the Chadian troops as they fought against the Libyans.
The War Nerd explains what a "technical" is:
Habre's rebels took it from the Libyans in a battle which might've been the debut of one of the major new weapons systems of the late 20th century, the "technical." If you've read up on Somalia, you know that a "technical" is just a Toyota 4wd pickup with a big machinegun or grenade launcher welded onto the bed.
Wikipedia goes on:
The 1987 war resulted in a heavy defeat for Libya, which, according to American sources, lost one tenth of its army, with 7,500 troops killed and 1.5 billion dollars worth of military equipment destroyed or captured. Chadian losses were 1,000 troops killed.
... Apparently formidable, the Libyan military disposition in Chad was marred by serious flaws. The Libyans were prepared for a war in which they would provide ground and air support to their Chadian allies, act as assault infantry, and provide reconnaissance. However, by 1987, Gaddafi had lost his allies, exposing Libya's inadequate knowledge of the area. Libyan garrisons came to resemble isolated and vulnerable islands in the Chadian Sahara. Also important was the low morale among the troops, who were fighting in a foreign country, and the structural disorganization of the Libyan army, which was in part induced by Gaddafi's fear of a military coup against him. This fear led him to avoid the professionalization of the armed forces.