A cross-border incursion into the Russian region of Belgorod on Monday put the Free Russia Legion under the spotlight, prompting questions about this mysterious paramilitary unit of anti-Putin Russians.
![A look at the Free Russia Legion, the pro-Ukrainian group that attacked Belgorod](https://s.france24.com/media/display/25eebdc0-f97a-11ed-aa36-005056bf30b7/w:1024/p:16x9/230523-legion-russe-ukraine-m.jpg)
A cross-border incursion into the Russian region of Belgorod on Monday put the Free Russia Legion under the spotlight, prompting questions about this mysterious paramilitary unit of anti-Putin Russians.