Apparently Mumford's work has been gathering more and more attention; those who have been following his work will be interested in this NY Times article (registration required) which provides a little background into Mumford's motivations and inspiration.
Now 44, Mr. Mumford had been comfortably embedded in the London and New York gallery worlds. He was known for paintings that seemed to pit two disparate Americas - wilderness and society - against each other by depicting, for example, a car seen against a sublime landscape or a wild animal about to pounce at a house. ... Mr. Mumford says his inspiration for the project stemmed directly from his admiration for the painter Winslow Homer, who was sent to the front during the Civil War to sketch for Harper's Weekly.The article mentions that this latest installment is unfortunately also the final one (though one wonder whether his newfound friendships with Iraqi artists will lead to further "journal" entries in the future). As always, it is an excellent read. Artnet has collected all of the Baghdad Journals here, if you're interested.
... Like Winslow Homer before him, Mr. Mumford spent most of his time at military bases, chronicling the routine, monotony and constant togetherness of soldiers' daily lives. Often they are seen dozing on cots, doing paperwork, watching television or playing cards. But he also shows them standing guard, attending neighborhood council meetings, searching homes and hunched inside tanks, tensely watching the road.