Egypt–Libya border in the context of "Cave of Swimmers"

Egypt, officially the Arab Republic of Egypt, is a country spanning the northeast corner of Africa and southwest corner of Asia via the Sinai Peninsula. It is bordered by the Mediterranean Sea to the north, Palestine and Israel to the northeast, the Red Sea to the east, Sudan to the south, and Libya to the west; the Gulf of Aqaba in the northeast separates Egypt from Jordan and Saudi Arabia. Cairo is the capital, largest city, and leading cultural center, while Alexandria is the second-largest city and an important hub of industry and tourism. With over 107 million inhabitants, Egypt is the third-most populous country in Africa and 15th-most populated in the world.

Egypt has one of the longest histories of any country, tracing its heritage along the Nile Delta back to the 6th–4th millennia BCE. Considered a cradle of civilisation, Ancient Egypt saw some of the earliest developments of writing, agriculture, urbanisation, organised religion and central government. Egypt was an early and important centre of Christianity, later adopting Islam from the seventh century onwards. Alexandria, Egypt's former capital and currently second largest city, was a hub of global knowledge through its Library. Cairo became the capital of the Fatimid Caliphate in the tenth century and of the subsequent Mamluk Sultanate in the 13th century. Egypt then became part of the Ottoman Empire in 1517, until its local ruler Muhammad Ali established modern Egypt as an autonomous Khedivate in 1867. The country was then occupied by the British Empire along with Sudan and gained independence in 1922 as a monarchy.

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 km (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.

Libya has been inhabited by Berbers since the late Bronze Age as descendants from Iberomaurusian and Capsian cultures. In classical antiquity, the Phoenicians established city-states and trading posts in western Libya, while several Greek cities were established in the East. Parts of Libya were variously ruled by Carthaginians, Numidians, Persians, and Greeks before the entire region became a part of the Roman Empire. Libya was an early centre of Christianity. After the fall of the Western Roman Empire, the area of Libya was mostly occupied by the Vandals until the 7th century when invasions brought Islam to the region. From then on, centuries of Arab migration to the Maghreb shifted the demographic scope of Libya in favour of Arabs. In the 16th century, the Spanish Empire and the Knights Hospitaller occupied Tripoli until Ottoman rule began in 1551. Libya was involved in the Barbary Wars of the 18th and 19th centuries. Ottoman rule continued until the Italo-Turkish War in 1911, which resulted in Italy occupying Libya and establishing two colonies: Italian Tripolitania and Italian Cyrenaica, later unified in the Italian Libya colony from 1934 to 1943.

In Egypt, the Western Desert is an area of the Sahara that lies west of the river Nile, up to the Libyan border, and south from the Mediterranean Sea to the border with Sudan. It is named in contrast to the Eastern Desert which extends east from the Nile to the Red Sea, although both are part of the broader Libyan desert in North Africa. The Western Desert is mostly rocky desert, save for an area of sandy desert, known as the Great Sand Sea, lying to the west and extending across the Libyan border.The desert covers an area of 680,650 km (262,800 sq mi) which is two-thirds of the land area of the country. Its highest elevation is 1,000 m (3,300 ft) in the Gilf Kebir plateau to the far south-west of the country, on the Egypt-Sudan-Libya border.The Western Desert is barren and uninhabited save for a chain of oases which extend in an arc from Siwa, in the north-west, to Kharga in the south.It has been the scene of conflict in modern times, particularly during the Second World War.

Administratively the Western Desert is divided between various governorates; in the north and west, the Matrouh Governorate administers the area from the Mediterranean south to approx 27°40' N latitude, and the New Valley Governorate from there to the Sudan border, while in the east parts of the Western Desert lie in the Giza, Fayyum, Beni Suef, and Minya Governorates.

Tobruk (/təˈbrʊk, toʊˈbrʊk/ tə-BRUUK, toh-BRUUK; Arabic: طبرق, romanized: Ṭubruq; Italian: Tobruch) is a port city on Libya's eastern Mediterranean coast, near the border with Egypt. It is the capital of the Butnan District (formerly Tobruk District) and has a population of 120,000 (2011 est.).

Tobruk was the site of an ancient Greek colony and, later, of a Roman fortress guarding the frontier of Cyrenaica. Over the centuries, Tobruk also served as a waystation along the coastal caravan route. By 1911, Tobruk had become an Italian military post.

The Siwa Oasis (Arabic: واحة سيوة Wāḥat Sīwah [ˈwæːħet ˈsiːwæ]) is an urban oasis in Egypt. It is situated between the Qattara Depression and the Great Sand Sea in the Western Desert, 50 kilometres (31 mi) east of the Egypt–Libya border and 560 kilometres (350 mi) from the Egyptian capital city of Cairo. It is famed from its role in ancient Egypt as the home to an oracle of Amun, the ruins of which are a popular tourist attraction, giving it the ancient name Oasis of Amun-Ra, after the major Egyptian deity.

Bardia, also El Burdi or Bardiyah (Arabic: البردية, romanized: al-Bardiyya or Arabic: البردي, romanized: al-Burdiyy) is a Mediterranean seaport in the Butnan District of eastern Libya, located near the border with Egypt. It is also occasionally called Bórdi Slemán.

The name "Bardia" is deeply rooted in the ancient history of the early ancestors of the Tebu (Gara'an) and has remained significant across generations. This continuity extends into the era of the Kanem-Bornu Empire, whose royal family is of Tebu origin. The rulers of the empire traditionally traveled via Bardia en route to Egypt, continuing via the Red Sea route to Mecca for pilgrimage (Hajj) . Their journeys often passed through key waypoints such as Traghen, Zeila, Jalo, Ajdabiya, Tazerbu, and Jaghbub, followed by Swia, before proceeding directly to Egypt or from Jaghbub to Bardia and onward towards Egypt and the Red Sea.

Sallum (Arabic: السلوم, romanized: as-Sallūm Egyptian Arabic pronunciation: [essælˈluːm] various transliterations include El Salloum, As Sallum or Sollum) is a harbourside village or town in Egypt. It is along the Egypt/Libyan short north–south aligned coast of the Mediterranean Sea in the far northwest corner of Egypt. It is, geodesically, eight kilometres (five miles) east of the border with Libya, and 128 kilometres (80 mi) from the notable port of Tobruk, Libya.

Sallum is mainly a Bedouin community of the families of merchants, fishermen and herdsmen. It has little tourist activity and few organized historical curiosities. It is a key trading center for the local Bedouin community. It has a World War II Commonwealth War Graves Commission cemetery and is 7.5 kilometres (4+3⁄4 mi) north of Halfaya Pass.

Sidi Barrani (Arabic: سيدي براني  pronounced [ˈsiːdi bɑɾˈɾɑːni]) is a town in Egypt, near the Mediterranean Sea, about 95 km (59 mi) east of the Egypt–Libya border, and around 240 km (150 mi) from Tobruk, Libya.

Named after Sidi es-Saadi el Barrani, a Senussi sheikh who was a head of its Zawiya, the village is mainly a Bedouin community. It has food, gasoline outlets and one small hotel, but virtually no tourist activity or visited historical curiosities. It is the site of an Egyptian Air Force base.