The United Nations Security Council authorised the deployment of the first batch of 30 unarmed UN monitors to Syria in a unanimous vote yesterday.
It also warned it would "consider further steps" against the regime of President Bashar al-Assad if Syria does not end violence and comply with a ceasefire and a six-point peace plan drawn up by the Arab League and UN envoy Kofi Annan.
Troops for the mission will be drawn from existing UN military observer missions in the Golan Heights, Lebanon and Sudan.
The resolution is the first to be passed by the Security Council since the Syrian crisis - which has pushed the country to the brink of civil war - began over a year ago. Significantly, it won the support of Russia and China, who had controversially vetoed a previous resolution aimed at bringing to an end violence that has claimed 9000 lives in the past 13 months.
Russia's UN ambassador, Vitaly Churkin, said Moscow was satisfied with the latest Western-Arab resolution authorising the deployment of the first batch of unarmed UN observers to Syria to monitor its fragile truce. But speaking after the vote, Churkin warned against "destructive attempts of external interference" in Syria.