Complex sentence: LTG James M. Dubik assumed command of MNSTC-I on 10 June 2007 following his assignment as Commanding General of I Corps and Ft. Lewis.
Split into simpler sentences: LTG James M. Dubik assumed command of MNSTC-I on 10 June 2007. Prior to this assignment LTG Dubik was the Commanding General of I Corps and Ft. Lewis.