The biggest threat to the world

Big Question: From Vladimir Putin's expansionist aims to the advances of Islamic State, the news is full of threats to global stability - but what do specialists in war studies think we should fear most?

Is Islamic State of Iraq and the Levant (Isil), close to Europe via its growth in Libya, the greatest threat to global stability? Or is China's rise more to be feared than Vladimir Putin's involvement in the Ukraine crisis?

The World Economic Forum annually produces its list of the threats the world faces and at the top of this year's list was state conflict. So what are the threats to global stability that should really worry us, according to specialists in conflict studies?

What do you think is the biggest threat to the world and why? Do Homework
What is the biggest threat to your country? Why? Do Homework
Do you have faith in your leaders? In the leaders of other countries? Do Homework