Assassins is perhaps the most believable terrorist attack novel I have read. The plot seems right out of the daily news of Iranian threats, rogue Russian KGB officers, lost Russion nukes, Mid-East turmoil, and domestic conflicts about how to fight the war against Islamic radicals.
North knows the ins and outs of the military and political organizations and functions and adequately puts them into the book.
The action of the book rapidly changes locations and characters. North helps the reader keep track by having sub-chapter headings of place, date, time, so readers always know where the action is, but at times it seems like a string of memos and bullet points rather than a story. This led to me skimming many of the pages to get the heart of the matter. I would rather have a more fluid story.
North's writing in 2005 optimistically predicted quicker success in developing more stable Iraqi government and Afghan government. Readers will notice this error, but it does not really affect the story negatively.
The main characters are consistent with the previous books in the series. Readers who enjoyed those books should also enjoy The Assassins.