Surprisingly enjoyable, with a level of grittiness and realism not usually seen in a Star Trek book.
The Enterprise is visiting the Tarn system in an attempt to normalise relations after a war 200 years ago plunged both powers into a stalemate. After discovering descendants of that war from both sides, Picard, Riker and the crew must strive to stop the conflict being reignited.
Author William Forstchen has crafted a thoroughly enjoyable read in "The Forgotten War", with a healthy balance of Star Trek optimism mixed in with the grittiness of a brutal centuries old conflict. Picard's role as mediator here is not enviable, and I thoroughly enjoyed reading through his internal struggle to tow the line. There are no immediately obvious solutions here: both Tarn and Federation descendants are intent on destroying each other, and any interference from the Enterprise would have a very real impact on present-day Tarn/Federation relations.
The alien nature of the Tarn speaks to humanity's aversion to reptiles, and reminded me very much of the hostile Xindi Reptilians from Star Trek: Enterprise (this book was written before that series, also explaining the conflicts with the 22nd century timeline established on screen). While Tarn representative Harna Karish's presence was transparently suspicious from the start, his arc from unwilling ambassador to blood-thirsty fighter was entirely believable. Here is a character who longed for war and was looking for any excuse to slay some humans. Contrast this with Admiral Garu Jord, introduced later in the book. He's far more amenable to peace yet simultaneously pragmatic about the difficulties involved obtaining it. Forstchen could have easily made the Tarn a two-dimensional alien threat, but instead we get these layers of character nuance and complexity which make The Forgotten War all the more rich and immersive.
Riker's interaction with the human descents on Torgu-Va is also well written. These are a generation who have been "bred for war", and as result have buried so much of what makes us human. There's a level of grittiness here which resonates with us in the 21st century on account of our exposure to wars' effects on humanity in modern-day conflicts. The big reveal late in the book about who is pulling Lysander Murat's strings works. Just. Normally cryostasis storylines would have me frowning about their convenience, but I wasn't too annoyed this time around. The conflict between Picard and Murat is great fun to read, although I'd have perhaps not made Picard such a kowtower on his first encounter with the Commodore.
The solution is imaginative and satisfactory, if a little quick. So much of the book drips with rich prose about the brutality of an endless war, so when things cease so suddenly it left me rather jarred. That suddenness chips away at a fifth star for this book, alongside the inclusion of the rather unsympathetic character Dr. Janice Eardman. Knowledgeable fans will always have issues when a principal character's backstory is modified to support a storyline. We're lead to believe that Eardman was a huge part of Riker's life before the Enterprise. Then again, with early Riker's womenising tendencies, it may be believable. Still, I can't say I warmed to her (especially with her chafing against Picard later in the book - something which went unchallenged).
A firm four stars. And a pleasant surprise!