Stephen Turnbull has written numerous books about
the samurai and Japanese medieval warfare. This Osprey book,
characteristically brief and abundantly illustrated, focuses on the hatamoto, or
the personal body guards of the daimyos of the Sengoku (Warring States)
and early Tokugawa Periods of Japanese history. They got their
name from the space “beneath the flag” (the literal meaning
of hatamoto) where they sat with their lord
on campaign. Their duties, however, extended far beyond simply
guarding their daimyo, as they formed both an elite guard unit of
major daimyo armies and a core of trusted subordinates who could
take command of independent detachments as well as assume administrative
duties. In this, they most closely resemble the familiae, or
military households, of medieval European kings and barons.
Indeed, despite the emphasis in the text on the military organization
and actions of selected hatamoto, especially
those of the Big Three of Japanese unification—Oda Nobunaga,
Toyotomi Hideyoshi, and Tokugawa Ieyasu (as
well as a few of the most famous Sengoku daimyo such as Uesugi Kenshin and
Takeda Shingen)—probably the most valuable parts of
the book relate to the transition from the Sengoku Period to the
Tokugawa Era, when major warfare ceased and the samurai generally
were transformed into a hereditary caste whose major duties were
administrative and cultural rather than military, save for suppressing
periodic peasant revolts. Turnbull’s emphasis on the
role of the hatamoto in leading this transition—one
of the reasons their earlier flexibility as subordinates was so important—helps
explain the success of the Tokugawa transition from incessant warfare
to a carefully balanced federation of peaceful daimyo domains under
Tokugawa hegemony.
In other respects the text is typical Turnbull. The analysis
is narrative-driven, with numerous illustrative incidents detailed
throughout the text, complemented by the many illustrations, most
of which are modern but done in the style of Sengoku screen paintings
(the more “realistic” modern representations of hatamoto armor
and ceremonial settings are somewhat less successful, in this reviewer’s
opinion). That analysis is generally accurate as far as it
goes, which is to say that it does not go deeply into the socio-economic
structural background of military change. This is especially
true of the differences and roles of horse versus foot guards, which
tended to be much more a matter of social status than military function. Turnbull
tends to take his sources just a bit too uncritically at times, especially
in terms of the ideal images of hatamoto and
samurai loyalty his sources present. But such weaknesses are
not fatal, and this is one in the Osprey series that can serve as
a reliable, quick and colorful introduction to a topic that is otherwise
not readily available in English-language publications.