From a recent Senate Committee on Armed Services hearing on Iraq and Syria picked up by Micah Zenko:

SEN. JOHN MCCAIN (R-AZ): I take it from your answer that we are now recruiting these young men to go and fight in Syria against ISIL, but if they’re attacked by Bashar Assad, we’re not gonna help them?

SECRETARY OF DEFENSE CHUCK HAGEL: They will defend themselves, Senator.

MCCAIN: Will we help them against Assad’s air…

HAGEL: We will help them and we will support them, as we have trained them.

MCCAIN: How will we help them—will we repel Bashar Assad’s air assets that will be attacking them?

HAGEL: Any attack on those that we have trained and who are supporting us, we will help ‘em.

This policy and the lunatic alliances it is based on will break apart. Has there ever been a coalition with such discrepancies that has held throughout the ups and downs of a war? I do not know where, when and how the breaking up will occur but such a mess is simply not sustainable.