Risban
Chamber's Twientieth Century Dictionary · 1908 · p. 90
ris′ban, n. a piece of ground upon which a fort is constructed for defence of a post. [Fr.,—Ger. ri bank .]
Bu kavram başka kaynaklarda da geçiyor
A Dictionary of Military Terms (1918)
French-English Dictionary of Military Terms (1918)
A Military Dictionary and Gazetteer (1881)
A Military Dictionary (1810)
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