Hundreds of thousands of Catalan independence supporters clogged one of Barcelona's main avenues on Saturday to demand the release of separatist leaders held in prison for their roles in the region's banned drive to split from Spain.
US Secretary of Defense James Mattis says they will make efforts to make Moscow comply by treaty.
In 2015, far-right leader tweeted photos of Daesh executions, including decapitated body of US journalist James Foley.
Secretary-General Jens Stoltenberg says current command structure not fit to tackle modern threats.
Two young children were killed and three seriously injured Tuesday when a car ploughed into their classroom at a Sydney school, with witnesses and emergency services describing "pandemonium" at the scene.
Britain's University of Oxford said one of its professors, the prominent Swiss intellectual Tariq Ramadan, had taken a leave of absence from the university, after two women filed complaints against him in France over allegations of rape.