The last letter, though, looks like “N” rather than “R”. Lettering on the other side of his arm, too, but I can’t make it out.
My guess is it is the end of a German word ...LADEN.
https://www.germanveryeasy.com/laden
Lots of these people are foreigners. I’ve heard a slavic language, German, Mandarin, as well as English being used as commands from leaders in the protests.