Complex sentence: On his return, Galloway was given a "severe reprimand" from the Labour Chief Whip, Derek Foster for his unauthorised trip to Iraq, apologised for his conduct, and undertook to follow future instruction from the whips.
Split into simpler sentences: On his return, Galloway was given a "severe reprimand" from the Labour Chief Whip, Derek Foster, for his unauthorised trip to Iraq. The MP apologised for his conduct and undertook to follow future instruction from the whips.