This was the attempt that was foiled by two US soldiers, their friend and a soldier from the UK, I don't remember the specifics of what service branches they were in. Clint Eastwood I believe is making a movie or at least, using these folks in some movie in the works currently.
Two charged over foiled 2015 train attack
Two people have been charged in Belgium over an August 2015 attack on a French high-speed train travelling from Amsterdam to Paris.
The pair were charged with participating in "the activities of a terrorist group", prosecutors said.
They are suspected of helping Moroccan gunman Ayoub El-Khazzani, who opened fire on the Thalys train but was overpowered by passengers, including three Americans and a Briton.
Read more at: http://www.bbc.com/news/world-europe-41825021
