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U.S. officials say 1,000 Russian troops have entered Ukraine as Ukrainian military slam Russia for a "full-scale invasion." CNN's Barbara Starr reports.
A day after ISIS posted a propaganda film that shows the beheading of an American journalist, the U.S. pounded the terrorist group with a new round of airstrikes. CNN's Barbara Starr reports.
After forcing millions to flee their homes, U.S. intelligence is now trying to determine just how strong ISIS is.
More than one hundred additional military advisers will be sent to Iraq, Pentagon sources confirm to CNN's Barbara Starr, as they consider new options for humanitarian relief for the Yazidis trapped by ISIS.
U.S. airstrikes targeted ISIS units and checkpoints around the Mount Sinjar area. CNN's Barbara Starr reports.
Intense airstrikes have slowed ISIS's advance, but Pentagon officials tell CNN's Barbara Starr it might not be enough.
CNN's Barbara Starr reports on the United States starting humanitarian aid drops in Iraq to help those trapped by ISIS.
U.S. officials say they have observed Ukrainian forces firing short-range missiles near pro-Russian rebel positions. CNN's Barbara Starr reports.
CNN's Barbara Starr reports on the evidence the U.S. says it has that implicates Russia in the MH17 plane crash.