The Kurds and Shia were abandoned by Bush 1 after the Gulf War. We encouraged them to rebel against Saddam, then we left them to deal with him without our support.
GWB abandoned the Sunnis who fought alongside us in the Awakening to the Shia in control of the Iraqi government.
Sadly, it’s a bipartisan tradition.
Wow, I can only remember the democrats abandoning S. Viet Nam, Iraq, Libya after coming back into the fold, and their reversals of almost every single foreign policy policy or treaty signed by republicans. At least Bush only abandoned his own so to speak - are there more instances of republicans abandoning a US ally? Bay of Pigs - democrats - a long socialist propelled policy.