"It's civil war. It's been going on for millennia. At this point, the source has been pretty well buried by history." Arcee sounds a little short, because she'd rather not think about it. War's pretty much her life, but she's just not in the mood to give a lecture on Cybertronian history to a total stranger, not when that history is so deeply personal to her. But...Legion needs some context. "There are two factions: Autobots and Decepticons. Optimus Prime leads the Autobots, but I'm in provisional command right now. The Decepticons are led by Megatron, a bot who originally rallied for social change and justice, but he...well, let's just say that tyrant is a kind description."

Her optics flash, her face darkening, but she cycles air through her vents in a sigh. "Your mystery bot could be an Autobot or a Decepticon. If they're an Autobot, then they didn't come here with me."