Matthew Poole and continuators on Jeremiah 50:18

18 Therefore thus saith the LORD of hosts, the God of Israel, Behold, I will punish the king of Babylon, and his land , as I have punished the king of Assyria .

God may justly punish those who do the things which he hath commanded them to do, if they do it not in that manner which he directeth, or, if what they do, be not done in obedience to his command, but in satisfaction to their own lusts, which was the case of the Assyrians, Isa. 10.7.

Some refer this to the punishment of the Assyrians in the destruction of Senacherib and his Army in the time of Hezekiah, but the Prophet seemeth here to speak of a destruction of Assyria, which followed after his devouring of the Ten Tribes, from whence we may conclude, that Assyria was destroyed before the time of this Revelation.