21.   The latest offensive began after rebels invaded a neighboring region and following apartment bombings around Russia that were blamed on the rebels.

22.   They returned after Russia blamed Chechens for terrorist apartment bombings in Russian cities, and after militants launched attacks into the neighboring Russian region of Dagestan.

23.   They returned after Russia blamed Chechens for terrorist apartment bombings in Russian cities, and after militants crossed over from Chechnya into the neighboring Russian region of Dagestan.