This book, though fiction, is more or less what happened during WW2, with regard to Pearl Harbor, and the background to the Manhattan project. The often hidden hand of the OSS's William Donovan is seen to inform all sorts of ostensibly unrelated parts of the plot.
The writer has seen fit to interlace the basic plot - or, in his inimitable style - the various concurrent plots - with racy elements which were presumably deemed to make the whole sell better (although these are probably not too wide of the mark, either).
The writer has an almost Katherine Mansfield flair for keeping the reader suspended in anticipation, wondering where the next part will lead...and then it doesn't.
More seriously, the work can to some extent teach an often insular North American readership the vital necessity of strategic analysis and the integration of the US economy with the commerce and politics of raw materials.