Duty, Honor, Country is the motto of the graduates of the United States Military Academy at West Point. Black Knights of the Hudson is a series of books that tells the saga of the fictional MacKendrick Army family from the Civil War through World War II. In Shadow of the Flags, brothers James and Timothy MacKendrick must decide whether to honor their oaths to defend the flag and remain in the Blue of the Union Army or to follow kin and closest friends into the Gray of the Confederacy.
With the Civil War over, James seeks a return to the cheerful fatalism of the professional soldier, and is even willing to serve in the hated Cavalry. Timothy, cooling his heels in a Staff position, has his hands full with his willful wife who has yet to learn that a good Army wife does not hesitate to follow her husband - even to dismal outposts in the Western territories. She pays a heavy price for her obstinacy and independence in the glittering social whirl of post-Civil War New York,
Changing of the Guard (1885 to 1898) is the third book in the tale of the MacKendrick family, who live by West Point's motto of "Duty, Honor, Country." Here the reader meets the vivid offspring of James and Timothy MacKendrick. With the Indian Wars tapering down, the attention of the young nation turns to flexing its muscles. The MacKendricks are involved thoroughly with the changes facing both their country and their vivid family.