As you drive along Afghanistan’s motorways, you have to deal with the culvert crater problem. In this mountainous country, prone to seasonal flash floods, most roads are undercut with drainage channels at 50-metre intervals.
For much of the past two decades the Taliban used these culverts to plant improvised explosive devices. Long stretches of Afghanistan’s motorways have chunks blown out of them every 50m, where the IEDs concealed in culverts targeted military vehicles.
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Source: The National News