When there are means of communication on all four sides, the ground is… — The Art of War
SAPIR 861
When there are means of communication on all four sides, the ground is one of intersecting highways. 44. When you penetrate deeply into a country, it is serious ground. When you penetrate but a little way, it is facile ground. 45. When you have the enemy's strongholds on your rear, and narrow passes in front, it is hemmed-in ground. When there is no place of refuge at all, it is desperate ground. 46. Therefore, on dispersive ground, I would inspire my men with unity of purpose.
Open Scriptures Hebrew Bible (WLC), CC BY 4.0