Sources: BBC
Several nations, including Turkey, Germany and Canada, expel Syrian diplomats in response to the May 25 Houla massacre. 2012-05-30
Several Arab and Western countries expel Syrian diplomats in response to the Houla massacre. 2012-05-29
A senior Iranian Revolutionary Guards commander admits that the country has sent troops to Syria to fight against opposition forces. 2012-05-29
At least 55 people are reported killed, including 26 in the city of Idlib, as violence increases again despite the arrival of U.N. observers to monitor a cease-fire. 2012-04-16
A United Nations backed deadline for withdrawal of Syrian army troops and weapons passes, with no end to the violence. 2012-04-10
Despite the deadline, the violence continues with the Syrian Army shelling the cities of Homs and Hama and insurgents killing six soldiers. 2012-04-10
Russian officials will meet with U.N.-Arab League envoy Kofi Annan to discuss his efforts to mediate a cease-fire in Syria and with a Syrian opposition delegation in the next few days. 2012-03-22
The United Nations Security Council adopts a statement supporting Kofi Annan's plan for ending violence in Syria. 2012-03-21
Confidential documents that surfaced provide a look into the regime's strategy to suppress the anti-government protests. 2012-03-19
There is a lull in the bombardment of Homs allowing some families to escape and for protesters to go to the streets. 2012-02-12