Egypt plans to double the size of a buffer zone along its border with the Gaza Strip.
The government says the measure is intended to put an end to the movement of armed fighters and weapons from Gaza to Egypt's Sinai Peninsula.
The first phase of the operation began in October, days after 30 Egyptian soldiers were killed in a suicide attack on a checkpoint close to the Gaza border.
Thousands of people in northern Sinai were ordered to move out. Their homes were then bulldozed and bombed. The buffer zone runs for about 13km along Egypt's border with the Gaza Strip.
The first phase cleared an area 500 metres wide, destroying homes and tunnels used for smuggling. The security buffer is now being extended to one kilometre.
But is Egypt's overriding justification one of national security? Or are there regional and international pressures at play?
Presenter: Fauziah Ibrahim
Nicholas Piachaud - Egypt researcher at Amnesty International.
Wafik Moustafa - chairman of the British Arab Network, and Author of 'Egypt - The Elusive Arab Spring'.
Sharif Nashashibi - chairman and co-founder of Arab Media Watch and a journalist specialising in Arab Affairs.
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Source: Al Jazeera