verse 38: fortresses
I’ve read in some places that the word ‘citadels’ is a better translation (for example, could be a muslim citadel)
I’ve read elsewhere that it is talking about one who worships raw power.
Romans 1, not being a bible scholar, I wonder if the wrath of God is upon us, not with fire balls from heaven, but leaving us to our own destruction.
That's my take on it -- it illustrates what most tyrants do when they grab power; but the parallels to the current situation are striking, particularly 36-39. For comfort, however, we can turn to all of the following chapter, 12 -- it's short but sweet!
Truly, Daniel is an astounding book of prophecy.