What is the band rise against biggest accomplishment?

Some of Rise Against's biggest accomplishments are the release of their most recent CD that sold over 2 million copies Appeal to Reason. On the CD Siren Song of the Counter Culture, one of the accomlpishments was the the song Swing Life Away. Some more are the releases of all their CD's in order. The Unraveling, Revolutions Per Minute, Siren Song of the Counter Culture, The Sufferer and the Witness, and Appeal to Reason, featuring one of the best songs by them, Savior.