noun
outer curtain (military encampment)
Historical term for the outer curtain or screen used in a traditional military encampment. Contrasts with 内幕 (うちまく), the inner curtain.
See also: 内幕
戦国時代の陣営では、外幕と内幕で将の居所を囲った。
In Sengoku-period encampments, the commander's quarters were enclosed by an outer curtain and an inner curtain.