Correct

秣马厉兵

/ mò mǎ lì bīng /
Strokes

Example

Definition

feed the horses and sharpen the weapons―make preparations for war; prepare for battle; keep one's powder dry

1
Liǎng
guójiā
国家
dōu
máng
zhāo
bīng
秣马厉兵
  

Both countries were busy preparing for war.