British Pathe image of Egyptian tank
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Egypt crisis: How the military grew so powerful

18 August 2013 Last updated at 19:32 BST

The Egyptian military is the biggest in the region, and it has played a role at many crucial points during the nation's recent history.

As well as producing several leaders from its ranks, it receives $1.3bn in aid each year and has a vast commercial arm with products including ammunition, mineral water and cars.

Yolande Knell reports.