|KEY WORD : architecture / castles|
| A type
of defensive gateway barrier *umadashi
馬出, consisting of an earthen embankment *doi
土居, or a wall built in a square shape in front of a main castle gate *koguchi
虎口. The barrier served to protect the gate from enemy attack and to enhance
the safety of entering and departing castle forces. It was found in medieval
castles built by the Gohoujou 後北条 clan and in many castles of the early
modern period (17-19c).
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