User blog comment:Green light ops/Battlefield 4 Campaign Details Reveal/@comment-4563909-20130719065155/@comment-4563909-20130720070059

Yeah, that's what I meant regarding the map descriptions. It allows one to piece together it with bits of information, never fully-explained. By "backstory" I did not mean the pretext of the conflict, rather, events of the conflict itself (Russians invade the North American continent via Alaska and attempt to capture Port Valdez, major oil pipeline, etc, etc).

And as you mentioned, BF3 depicted it outright as to why the War of 2014 began and how it erupted into this major conflict with between superpowers over a misunderstanding, as anyone who cared enough to pay attention would realize.