Just one link today, which happens to be the 100th anniversary of the Sykes-Picot agreement between Britain and France, that created the artificial states of Iraq and Syria by drawing arbitrary lines on  a map. While the collapse of the Syrian and Iraqi states obviously have more proximate causes, they were always inherently unstable and could survive as long as they did only as brutal dictatorships. 
Paul Mason in The New Statesman discusses the Sykes-Picot line. Key excerpt:
Today, the easy lesson to learn from Sykes-Picot: don’t draw arbitrary  lines across the map. Peoples and nations must have the right to  self-determination. This was the principle US President Woodrow Wilson  outlined as America entered the war, and which caused the British and  French governments to hide the existence of Sykes’ map from Washington.
  The harder lesson to learn is: never rely on national stereotypes;  never reduce the conflicts of the world to ethnicity alone. There are  also class, gender, religion, politics and history – attributes Sykes  discounted as he tried to predict how the sub-groups of the Middle East  would react to British policy.
  The final lessons is: accept responsibility.