Europe's largest exhibition of military-grade weapons is on display in London.

But, the event has faced trenchant criticism from human rights groups, senior politicians and anti-war campaigners who allege that it glorifies war and grants military and political benefits to countries committing severe human rights violations.

A major campaign is under way in the United Kingdom to stop arms sales to Saudi Arabia which is leading a devastating war in Yemen.

Al Jazeera's Nadim Baba reports.

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