To sharpen weapons and feed the horses; used to describe making thorough preparations for a fight or a major task.

rations and fodder for troops and their horses

Feed the horses and sharpen the weapons; to be fully prepared for war or, more generally, to make ready for a major task or challenge.

hay or straw used as food for cattle and horses; livestock feed

To sharpen weapons and feed the horses; to be fully prepared for combat or a major challenge (commonly written as [[厉兵秣马|厲兵秣馬|li4 bing1 mo4 ma3]])