Anytime you get Outlaws and Angels together there's going to be trouble. Those two have been banging heads for at least 15 years now.
Yeah. Them and the Vagos. To them, it's just business. The more landscape they own, the more women and drugs they can deal. Some other club comes in, tries to take their territory/women/market, it's a fight. And they love to fight.
A lot longer than that. I remember back in the late 60's a chapter of Outlaws in NC ambushed a group of Hell's Angels as the HA's were traveling south on I95 heading for Florida.
If memory serves, about nine were killed.