Im aware that this battle was the one that led to the death of ISIS founder Abu Bakr al-Baghdadi, a rather unsympathetic fellow.
As for the last 25 years: American leaders (with the support of a majority of the American people) started wars that they regret starting. Any time a war is fought, civilians will suffer and die, but the American military fought those wars while inflicting remarkably few civilian casualties given the scale of the conflict.