When the Syrian revolution began, the activists employed almost entirely non-violent tactics. They also rejected the idea of foreign intervention. Nearly a year on, the revolution’s character has changed. There are still protests, boycotts, strikes and funeral marches. But the opposition’s main strategy for overthrowing Bashar al-Assad’s regime has become one of out-muscling it. To achieve that, it is calling for military help from abroad – a request that will be pressed when the Friends of Syria, a contact group of mainly Arab and Western countries, meet in Tunis later this week.