build high forts and dig deep ditches
The Chinese idiom g ā ol ě sh ē ng ō u in pinyin means to build a high barrier and dig a deep trench to defend. It's from Sun Tzu's virtual reality.
The origin of Idioms
"Sun Tzu · Xu Shi" says: "although the enemy is in a deep ditch, those who have to fight with us will be saved if they attack."
Discrimination of words
A wall built around a military camp. Trench: trench. Build high barriers and dig deep trenches.
Idiom usage
The seventh volume of the romance of the generals of the Yang family written by Wu Mingshi of Ming Dynasty: "since my father's nighttime dream is ominous and he can't stop fighting, how can I sit in his old division?"
Chinese PinYin : gāo lěi shēn gōu
build high forts and dig deep ditches
Break up one's family and subjugate one's country. pò jiā wáng guó
Silver screen and golden house. yín píng jīn wū