Session. Catherine has been involved with our museum for over a ecade and just two months ago, she helped organize a program where we had scholars from around the continent come for a daylong program. Catherines information is in your program. I point out that in addition to being a professor at Mississippi State university she is the author of two fine books, one entitled, the battle of kursk and the other, strategy and tactics. Ladies and jump in, dr. Catherine barbeeand liza mundy. [applause] good morning. Happy to see all of these nice faces outfront. This is a fantastic event and im excited about being part of it. I would like to introduce liza mundy, a journalist and author of four books and you can read her bio the program. She is going to talk to us about an amazing book, code girls the untold story of the american women code breakers of world war ii which i recently read and highly recommend. So im looking for to her presentation. [applause] liza thank you so much, dr. Barbier