Looked at from a certain point of view, it's likely part of the SAME 15 year quagmire.

War is great for business, why stop now when there are contracts to renew and weapons to be built and sold? Just dress it up in enough appeals to emotion and political drama and people will do their patriotic duty to believe in the effort.

I fear that's a low estimate - this entire situation is messy and complex and everyone ran out of not-bad options long ago.

Well it's already been going on for 7 years with 500k+ dead. US has already been there quite some time. The Kurds we support have many enemies as well. They will not exist without our support.