There is sneaking suspicion that the U.S. directed the ongoing ISIS attack on Abu Kamal to gain control over the crossing and to disable road supplies from Iran through Iraq into Syria.
The U.S. must be given no chance to use the ISIS pretext to take Abu Kamal. The Syrian government must rush to support its forces in the border city. It must immediately request that Iraqi forces cross the border from Al-Qaim and support the endangered Syrian troops.
Some reinforcement came in and Albu Kamal was soon back in Syrian government hands. The Syrian army also launched an operation to destroy ISIS positions in southeastern desert.
But U.S. interference in the east continued:
The Russian military is warning of a false-flag "chemical incident" in Deir Ezzor governorate. The Syrian Observatory reports that Islamic State remnants in the southeastern desert and in the Rukban camp, both under cover of the U.S. occupied zone around al-Tanf, prepare for a large attack on Syrian government forces. It claims that such an attack is an attempt to occupy the zone between al-Tanf and Albu Kamal at the Euphrates. Both operation would be planned diversions intended to draw Syrian forces away from Deraa and could provide excuses for U.S. intervention on the opposition side.