Raqqa, the de facto ISIS capital in Syria, is on the verge of falling. The rapid advance of the left-wing Syrian Democratic Forces (SDF) since they entered the city on June 6 contrasts with the slower advance of forces of the Iraqi and Iraqi Kurdistan governments in Mosul, the ISIS capital in Iraq, which the pro-government forces entered in February.
However, the June 18 downing of a Syrian fighter jet by a US war plane, after the former attacked SDF positions near Raqqa, is just one indication that eliminating ISIS will not end the violent multi-sided war in Syria that spawned it.