January 5th, 2006 br br BBC reports Bush will be announcing next week of sending an additional 20,000 US troops to Iraq as well as a "clean sweep" in top American official positions: br br Gen. John Abizaid will be replaced by Adm. William J. Fallon br br Gen. George Casey (who is opposed to sending more troops to Iraq) will be replaced by br Lt. Gen. David Petraeus br br John Bolton US Rep for the UN, will be replaced by the U.S.