European governments are using latest I.S. video to identify jihadists who have joined the militant group.
New I.S. video showing the body of Peter Kassig also includes footage of alleged Syrian military personnel being killed by the militants.
Military statement claims four soldiers were wounded, but security officials allege the number was closer to 11.
Seven militiamen injured in fighting.
U.S. president announces $3 billion for Green Climate Fund, which aims to help developing nations pursue environmentally friendly infrastructure.
The militant group’s chief has vowed to expand his group’s influence, as U.S. ramps up airstrikes in Iraq and Syria.