Why not "just" consider them as "irregular enemy combatants in a war"? I'm sure in the past US citizens have already joined other nations and fought...
It's also always a question of whether or not a unit can be pulled from the line. German infantry batallions at the end of the Second World War were...
German radio news on WDR 2 reported that men armed with knives tried to storm a mosque in London but were stopped by police. Can anyone confirm this?...