An alternate history novel that considers what might have happened had, when japan was about to surrender in 1945, the japanese army launched a coup, taken over the country, and carried on fighting. In a country where there's nothing much left to bomb, but with a fanatical populace and army prepared to die to defend their shores, america [britain and other allies are still fighting in south east asia, so don't worry, they do get mentioned] has to invade. Facing suicide bombers and human shields a very bloody conflict ensues.
The home front is in turmoil as people weary of war, but one secret agent landed in japan might just be able to perform above and beyond the call of duty.
a story complete in one volume, and running to 432 pages, this follows the usual format for alternate history novels, with characters both real and created by the writer. All of whom are quite good, and generally fit in with the style of the times. also as usual for this kind of book the broad sweeping canvas means you don't see some events firsthand such as the initial landings. but it's very effective to see what the second wave of troops experience as they go ashore.
And this is very readable stuff. if you like this kind of thing, you shouldn't go wrong with this book