Egypt unveiled a sprawling defense headquarters called the "Octagon" in the middle of the desert, the largest in the world.

Like the United States defense center, which derives its name directly from its geometric design, Egypt’s new defense center, The Octagon, is constructed based upon an eight-sided…

Egypt opened its new Octagon Strategic Command Headquarters, presenting the huge military center as a symbol of modernization and Cairo’s growing influence in the region.

In emphatic address, President speaks of Egypt's progress since 2011 uprising