I really liked this book!
The East and West went to war and the population moved underground into living areas called "ant farms" where they have been for 15 years. Unbeknownst to them the war ended after only 2 years and the news they have been receiving all these years is propagandist lies. The surface, though decimated by the war, is perfectly livable but is controlled by a select few.
This premise makes for a great story but it is full of neologisms, many of which are difficult to figure out.