Once Damascus becomes a radioactive sand dune, that will be the cue for the massive Ezekiel 38 coalition.
Assad will perish in that incident - whoever instigates it.
I’m not convinced Israel will be the reason for Isaiah 17:1.
Your interpretation of Ezekiel 38 is wrong.
Firstly - Ezekiel describes events in symbolic terms - the allied nations are depicted as coming from the four quarters of the globe. Persia (see Ezekiel 27:10), from the east; Ethiopia (see Ezekiel 30:5), or Gush (Genesis 10:6), from the south; Libya, or Phut (see Ezekiel 27:10; Ezekiel 30:5), from the west; and Gomer (see Genesis 10:2, 3; 1 Chronicles 1:5) from the north
These are symbolic, not actual.
And the timing was Babylonian exile - talking of the destruction of Judea through the BAbylonians.
The countries referred to are just euphemisms for all countries of that time (600 BC)