A draft cease-fire resolution is being written in the U.N., but there's growing doubt it will get the Security Council's support.
Eastern Ghouta is one of the last rebel-held areas in Syria, and it's been under near-constant bombardment since 2012.
Dozens of people are dead in Syria's Eastern Ghouta after pro-government forces intensified attacks on the area late Sunday.
Violence in Syria isn't just a factor of the country's civil war. Several conflicts are raging.
Israel says its defensive strategy isn't changing as it blames Syria for shooting down one of its planes.
Israel says the jet was targeted by Syrian anti-aircraft fire.
At least 80 people died in Syria on Tuesday as regime airstrikes increase.
Turkish officials also told the U.S. to withdraw its forces from Manbij, a border area in Syria.
Turkey considers the U.S.-backed Kurdish fighters to be terrorists.
Tillerson gave the policy speech at Stanford University.
A Russian military official has accused the U.S. of training ex-ISIS militants in Syria.
Officials said Iraqi forces are in complete control of Iraq's border with Syria.