http://www.haaretz.com/news/middle-east/report-assad-s-air-force-pounds-population-centers-in-syria-s-rastan-1.416357

SYRIA'S AIR FORCE POUNDS POPULATED CIVILLIAN AREAS

The involvement of the Syrian air force is likely to revive calls made by Arab states and the Syrian opposition for a no-fly zone over the country. If implemented, such a move could accelerate outside military intervention in the country, along the lines of the Western-Arab intervention in Libya last year.