en_tn/dan/11/26.md

those who eat his fine food

This refers to the king's advisers. It was usual for a king's most trusted advisers to eat meals with him. AT: "the king's best advisers" (See: rc://en/ta/man/translate/figs-metonymy)

His army will be swept away like a flood

Here the severe defeat of an army is spoken of as a flood of water that completely sweeps it away. AT: "The enemy will completely defeat his army" or "His enemy will completely destroy his army as a flood destroys everything in its path" (See: rc://en/ta/man/translate/figs-metaphor)

many of them will fall killed

Here "fall" is an idiom that refers to dying in battle, so "fall" and "killed" mean basically the same thing. AT: "many of his soldiers will die in battle" (See: rc://en/ta/man/translate/figs-idiom and rc://en/ta/man/translate/figs-doublet)