Every inch of the army is iron
Chinese idiom, Pinyin is C ù Nb ī ngch ǐ Ti ě, which means a metaphor for small force. From strategy five.
The origin of Idioms
Song Sushi's strategy 5: "there is no need to be an inch of soldiers, but the world will hold its breath and dare not fight."
Idiom usage
As subject, object, attribute; used in war, etc. example in this campaign, we won a large-scale victory only by using every inch of our troops.
Every inch of the army is iron
obtain gold by washing it from sand and gravel - shā lǐ táo jīn
cicadas chill and drearily shrill - hán chán qī qiè