So now that Syria’s so crowded, how can the United States elbow its way in? Cautiously, says the Heritage Foundation’s James Carafano.

“Once the [ISIS] black flag is down in Raqqa, our goals in Syria should be very limited,” says Carafano, who advised Trump’s transition team on national security. Limited, as in assuring no new flood of refugees. Or preventing Hezbollah and Iran from gaining a foothold on the Syrian side of the Golan Heights, right across from Israel.

Iran’s presence on the Golan is a no-no, Israeli Prime Minister Benjamin Netanyahu told Trump in their recent meeting. According to several sources, Trump agreed.

But the Iranians won’t. “The US should be careful and Israel should grieve,” says Esmail Qaani, deputy commander of the Revolutionary Guards’ Quds Forces, the group charged with exporting the Iranian revolution.