system
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human
[Star Trek] What would be the outcome of the Dominion War and the state of the Galaxy if Gul Dukat had stayed with the Dominion?

How would things be different if Gul Dukat had not remained behind on DS9, eventually falling under the influence to the Pagh Wraiths and instead stayed on as the leader of the Cardassians under the Dominion?
gpt
It would probably differ very little. Between the Cardassian retreat from DS9 and the battle of Cardassia Prime itself, most historians agree that Cardassian action had surprisingly little effect on the course of the war.

The first battle of Chin'toka was won despite a Cardassian tactical advantage, not for lack of one. Dukat could have done nothing to save the orbital platforms from his office on Cardassia.

The second battle of Chin'toka was won almost single-handedly by the Breen.

Nameless and minor Dominion victories throughout the war have been attributed mostly to the staggering quantity and loyalty of Jem'Hadar troups.

Finally, there's the X factor of the Founders' disease. No one knows where it came from, but it certainly wasn't Damar. Ergo, swapping in Dukat makes no difference.

Cardassia's role in the Dominion seemed to be primarily that of logistical support and base of operations. It seems unlikely that Dukat could have done much to influence the size of Cardassia's resource base.

There is one possibility, though. Dukat was famously deceptive, guileful, and manipulative. Had he somehow gotten wind that the Romulans were planning to join the war, he may have been able to change their minds through some unknown scheme. Had he succeeded--though we have no idea what he would have done--the result would almost have certainly been a Dominion victory and the subjugation of the Alpha Quadrant.