One Second After was one of the better survivalist novels I've read. In that book, an EMP attack destroys the North American electric grid and plunges the United States into lawless anarchy and mass starvation. It was a pretty gripping story about a small North Carolina town trying to survive amidst the chaos, even if the main character is a bit of an author stand-in.
The sequel picks up the story a year later, as the title indicates. Black Mountain is beginning to pull itself together and attain enough self-sufficiency to fend of starvation and even restore a few vital services. There has been little word from the outside world, however, other than BBC broadcasts ending with cryptic code phrases. England was not directly attacked, but Europe is in chaos, and Chinese troops are supposedly occupying the West Coast. Meanwhile, Black Mountain is having to contend with "Reavers," bands of backwoods survivalists who are now becoming much like their namesakes, alternately trading with and raiding their townified neighbors.
After a particularly violent Reaver raid, John Matherson leads a retaliatory expedition and gets captured. He discovers that the so-called "Reavers" are led by a former US Army First Sergeant, who is in his own way trying to do what Matherson does - keep his community alive in hard and violent times. The two men come to a sort of understanding and negotiate a semi-truce, which is then promptly derailed by the arrival of government black helicopters.
Yup, in this book, Forstchen brings in a James Wesley Rawles plot: the federal government is reforming (kind of), but of course it's run by power-hungry bureaucrats who are not much better than the warlords they are trying to suppress. When Matherson does not respond favorably either to the carrot or the stick offered to him, the militia he has trained at Black Mountain is forced to fight a battle against the feds.
It's possible the government, or the tattered remnants that would rise from the ashes of a civilization-ending event, would be as autocratic and brutal as Fortschen portrays it (in fairness, it's mostly a local satrap trying to defend his turf who does all the bad things, with the question of whether he really represents the new government or just a particularly malign representative of it being left an open question). However, the politics are certainly a bit Reaganish ("The nine most terrifying words in the English language are: I'm from the Government, and I'm here to help"), where you pretty much know as soon as the feds show up and say the U.S. government is back, it's not good news. The main character continues to be the ever-upstanding heroic defender of the Constitution, even when it's questionable whether a Constitutional government still exists.
The battle scenes are tense and this was a good post-collapse adventure, but the victory of the good guys requires the bad guys to be extremely stupid. Given all the loose ends, I suspect Forstchen has more sequels planned. I'll read them, but I'm hoping he expands a bit beyond Black Mountain and the virtues of good ol' small town America even in a post-apocalypse.