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Yemen's civil war is now two and a half years old, and the devastation grows daily as terrorists exploit the chaos.
- Yemen: 2.2 million children acutely malnourished
- Millions of children at risk thanks to Yemen blockade
It's now a three-way fight - north and south are in stalemate, while Al Qaeda and Islamic State grow stronger by the day.
A car-bomb attack on the Finance Ministry in Aden, a port city, has claimed at least two lives and left 10 people injured. This is just the latest in a string of atrocities claimed by IS, as the chaos of Yemen's war is being exploited by terrorists to devastating effect.
The country's children are suffering from preventable diseases like cholera, diphtheria and severe malnutrition.
What's now arguably the world's biggest humanitarian crisis will be a tricky subject for Britain's Prime Minister Theresa May, who is currently in Riyadh, Saudi Arabia.
She's there to talk with King Salman and has said she will tackle "big foreign policy issues", such as Saudi Arabia's involvement in Yemen's civil war which has included blocking aid from getting through to victims.
This is a thorny issue, as Saudi Arabia is one of Britain's most important customers for arms sales.
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