A Pentagon official said Thursday that the U.S. is planning to send additional troops into northeastern Syria to protect oil fields from ISIS. The announcement comes as Russia, which has gained new power in the region, ordered all U.S. troops out of the country and called the remaining American troops an "occupying force." The announcement is a reversal of President Trump's decision to pull U.S. forces from the area, which sparked a Turkish cross-border offensive earlier this month. While most U.S. troops are withdrawing from Syria, the Pentagon is planning a major increase in firepower to protect the ones left...