Initial optimism about the uprisings in Arabic states has melted away. John Simpson considers the long-term impact.
Syria: The story of the conflict
Eight steps to understanding the Syrian conflict.
Explore the Zaatari camp for Syrian refugees
Syria in conflict
Latest on the country's bloody internal battle
Libya after Gaddafi
Fall of Gaddafi and rise of the new Libya
Egypt in transition
The momentous changes shaping the country
Life after the revolution