Military Compound southeast of Homs. Medium Resolution imagery; a bit blurry.
New (er) imagery (early March '12) shows active positions, with numerous Artillery pieces, Radar Array at the west end of the main compound. Several units assembling in other areas.
News article from the same time period:
http://www.guardian.co.uk/world/middle-east-live/2012/mar/06/syria-atrocities-recalled-live
More info on the Homs Offensive