Explainer: What you need to know about IED attacks

Last week’s terror attack that left 11 General Service Unit (GSU) officers dead in Garissa has put in sharp focus the rising use of improvised explosive devices (IEDs) by Al-Shabaab against security officers along the Kenya-Somalia border.

Every year, thousands of people across the world die a result of IED attacks.

So, what is an IED? What is it made of? How does it work? And what is its extent of damage?

Foremost, the term IED came into common usage during the Iraq war, which started in 2003 and involved US troops.

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Source: Daily Nation