World War II: Troops of the British Eighth Army capture Tripoli in Libya from the German–Italian Panzer Army.

The Eighth Army was a field army of the British Army during the Second World War. It was formed as the Western Army on 10 September 1941, in Egypt, before being renamed the Army of the Nile and then the Eighth Army on 26 September. It was created to better control the growing Allied force based in Egypt and to direct its efforts to lift the siege of Tobruk via Operation Crusader.

Tripoli, historically known as Tripoli-of-the-West, is the capital and largest city of Libya, with a population of about 1.317 million people in 2021. It is located in the northwest of Libya on the edge of the desert, on a point of rocky land projecting into the Mediterranean Sea and forming a bay. It includes the port of Tripoli and the country's largest commercial and manufacturing center. It is also the site of the University of Tripoli.

Libya, officially the State of Libya, is a country in the Maghreb region of North Africa. It borders the Mediterranean Sea to the north, Egypt to the east, Sudan to the southeast, Chad to the south, Niger to the southwest, Algeria to the west, and Tunisia to the northwest. With an area of almost 1.8 million km² (700,000 sq mi), Libya is the fourth-largest country in Africa and the Arab world, and the 16th-largest in the world. The country claims 32,000 square kilometres of southeastern Algeria, south of the Libyan town of Ghat. The capital and largest city is Tripoli, located in the northwest and contains over a million of Libya's 7 million people.

The Panzer Army Africa was a joint German-Italian field army that fought in the North African campaign during World War II. It consisted of one German corps and three Italian corps. On 1943, during the Tunisian campaign, the Panzerarmee Afrika was changed to as the Army Group Africa, and consisted of the newly-formed German 5th Army and the Italian 1st Army. During the campaigns in North Africa, the Panzerarmee Afrika was subordinated to the Italian command, as well as to German command headquarters in the Mediterranean.