kevin weddle has produced one of the most comprehensive accounts of the battle. .. with 28 years of service. granger of west concluded two combats and professorship in military theory and data of were college in pennsylvania. his previous book, the life of samuel was awarded to william toby award. kevin has agreed to do this program in an interview, conversations which will be followed by questions, i'd be grateful if audience members could put questions in the q&a at the bottom of your screen. kevin, thank you very much for joining us. >> thank you, andrew. i appreciate the invitation thank you to everybody out there attending. >> so i want to begin asking you to discuss how your military background >> your writing of the book. >> oh, okay. well, you know, i think first of all, it's important to, you know, you don't have to be -- have a military back ground to be a good military historian. i would say the greatest military historians haven't had a military background. you look at some of the great military historians, atkinson and others, you don't have to have a m