margaret mcmillan. professor rick known as a professor of history at the university of toronto in an a meritus professor of international history. and the former warden of st. anthony's college of university of oxford. and oxford is where she's joining us from today. good day professor, how are you? very well, thanks. all right, so let's start with a book. you've written a lot of books about that. the 20th century and then you wrote this one, which is a course about the 20th century, just known for these great wars, but it's actually a much more broad look at history on this one topic, a war. why did, why did you write it? i'm also curious, are you surprised at all by the response to it? well, the 2nd question is easy to answer. yes i am. it's something i've been thinking about for a long time, but i thought it will come out. it's a book that a few people might like, be nice to pick up some nice reviews, but i am, i am surprised. it's something i've been thinking about for a long time. if you do, history, war comes in and out of history a lot that has a huge impact on history. and i suppose wa