For once the U.S. doesn't top this list—and China doesn't even make the top 50.
"We are not increasing our role in the Syrian civil war. But we will defend our troops," said U.S. Defense Secretary Jim Mattis
The British foreign secretary said the 2013 vote against intervention had limited the U.K.'s ability to influence events in Syria.
The dead included 11 children, and dozens more people were wounded.
Paris is providing weapons, air support and advice to French troops in the campaign to capture Manbij.
Neil Prakash was Australia's highest value target fighting for the radical Islamist group.
42 people were killed and 37 were wounded during the strike on October 3 that destroyed the hospital run by Doctors Without Borders.
The U.S. regards AQAP training camp as one of the deadliest branches of the network founded by Osama bin Laden.
A U.S.-led coalition has killed 10 Islamic State leaders in the past month.
The mounting civilian death toll and dire humanitarian situation has alarmed human rights groups.
The United States will shine a global spotlight on the conflict on December 22 at the United Nations.
The three brothers were waiting for their brides' party to arrive when a missile hit their house.
The greatest tragedy caused by U.S. forces in several years has elicited strong criticism.
Turkey said that a Russian jet had violated its airspace for the second time.
Turkey has "strongly protested" the violation, according to a statement.
The strikes seemed to have been carried out near Homs, an area crucial to Assad's control of western Syria.
Medics and locals officials have confirmed two houses were struck by bombs, killing mostly civilians.
A week-long pause in the fighting was meant to have started on Saturday.
This is the first time the Pentagon has acknowledged civilian casualties since it began an air campaign against Islamic State militants in Syria and Iraq.
Al Qaeda in the Arabian Peninsula said on Thursday a U.S. air strike had killed the senior figure who issued the group's claim of responsibility for the Charlie Hebdo attack in Paris.