rugged steeps, marshes and fens--all country that is hard to traverse:… — The Art of War
SAPIR 861
rugged steeps, marshes and fens--all country that is hard to traverse: this is difficult ground. 9. Ground which is reached through narrow gorges, and from which we can only retire by tortuous paths, so that a small number of the enemy would suffice to crush a large body of our men: this is hemmed in ground. 10. Ground on which we can only be saved from destruction by fighting without delay, is desperate ground.
Open Scriptures Hebrew Bible (WLC), CC BY 4.0