A soldier patrols at the Gare de Lyon train station in Paris, Sept. 26, 2014.
Soldiers patrol through the courtyard of the Louvre museum, in Paris, Sept. 26, 2014.
A demonstrator holds an antiwar banner near Parliament in London, Sept. 26, 2014.
Danish Prime Minister Helle Thorning-Schmidt announcing at a news conference that Denmark's contribution to the fight against the Islamist State rebel group will consist of seven F16 fighter aircraft from the Danish Air Force, Sept. 26. 2014.