The war between Mexico and USA, 1846 - 1848

Among the titles here:
Henderson, A Glorious Defeat
Greenberg, A Wicked War
Foos, A Short, Offhand, Killing Affair
Guardino, The Dead March
Bauer, The Mexican War

and most importantly, Chamberlain, My Confession: Recollections of a Rogue. This is the "Unexpurgated and Annotated Edition," in color, edited by William H. Goetzmann. The file is large & unwieldy, but at present is the best I can find