Meanwhile, in Syria, tensions are rising between the U.S. and Syrian governments after Syrian jets bombed a U.S.-backed militia while U.S. forces were nearby. The Pentagon said Friday it has increased its air patrols near the northeastern Syrian city of Hasaka and had “encouraged” Syrian jets to leave. The U.S.’s main allies in Syria are Kurdish forces that until now have largely avoided conflict with the Syrian government. That changed earlier this month when fighting broke out between the Kurds and the Syrian government for control of Hasaka.