Is the phrase "bled our country dry" a metaphor? Or some other figure of speech?

Is the phrase "bled our country dry" a metaphor? Or some other figure of speech?

Context: https://www.youtube.com/watch?v=TZ_eV2TRlOg&t=175s


bleed someone white and bleed someone dry. TFD

to take all of someone's money; to extort money from someone.

It is metaphorical, a country does not bleed. It can though be bled dry of treasure and life.