my name is todd sedgwick. i'm privileged to be one of the commissioners of the centennial commission, and it is my honor to help organize this symposium. i want to thank all the participants and all of you in the audience for coming, and the thousands who are watching this this afternoon from home as it is being live streamed. very briefly i would like to introduce the moderator and panelists. on my far rate is rob dalessandro, a well-known author and military historian specializing in the american extra missionary forces, and has written a couple of books. one is for sale outside. i'm going to be a shill for rob and encourage you to buy his book out there. he just came out with a new one called "remembering world war i ," which is being published by eastern national. .t just cannot very recently they are the distributor for the park service. he also is acting secretary of the american battle monuments commission, and most important to me, he is our chairman of the world war i centennial commission. thate just