Claimed footage of a firefight in Homs on Friday between regime forces and the Free Syrian Army

Friday's developments, both in public and behind the scenes, indicated that international intervention is not just on the way for Syria --- it has already begun. On Monday, an EA analysis assessed the options, concluding that arming the opposition could do more harm than good but that a no-fly zone protecting both insurgents and civilians might be possible.

Two new analyses pick up on this. Michael Hirsh writes how history indicates the US and Western Europe will eventually intercede in the crisis, so we should do it sooner rather than later. Anne-Marie Slaughter analyses how the world could intervene in Syria in order to stop the Assad regime.