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Egypt Opens World's Largest Defence Ministry, the Octagon

other · 2026-07-05

Egypt has just inaugurated the Octagon, its new military headquarters situated near Cairo, which is now the largest defense ministry building globally, surpassing the Pentagon. At the inauguration, President Abdel-Fattah el-Sisi, a former general, wore a military uniform for the first time in over a decade. This vast complex spans 90 square kilometers (34.7 square miles), making it comparable to the size of Lisbon, and includes eight octagonal buildings. Sisi described the Octagon as "evidence of a nation that knows nothing of the impossible," and the event featured a display of attack helicopters alongside him.

Key facts

  • Egypt inaugurated the Octagon, the world's largest defence ministry building.
  • The Octagon is located near Cairo.
  • It covers 90 sq km (34.7 sq miles), the size of Lisbon.
  • The complex consists of eight eight-sided buildings.
  • President Abdel-Fattah el-Sisi attended in military uniform for the first time in over 10 years.
  • Sisi called the complex 'proof of the will of a nation that knows nothing of the impossible'.
  • Attack helicopters accompanied Sisi to the opening.
  • The Octagon replaces the Pentagon as the largest defence ministry building.

Entities

Institutions

  • Egyptian Armed Forces
  • US Defence Department
  • Pentagon

Locations

  • Egypt
  • Cairo
  • Lisbon
  • Portugal

Sources