Act of War (novel)

Act of War is a 2014 USA Today and New York Times bestselling thriller spy novel by American author Brad Thor and the thirteenth book in the Scot Harvath series. It was preceded by Hidden Order and was followed by Code of Conduct.

Of the book, Thor stated that his "No. 1 goal is to entertain people. I'm an entertainer and I'm gonna give them a great summer read. But if you close the book with questions or wanting to learn more about something or just a little bit smarter, than I think that's a neat kind of value add."