Expeditionary forces. Since i had no frame of reference, i said yes. So that got me into looking at the records that first of all, i was astonished to understand that i was handling records that go back to world war i. And so that alone was very interesting and entertaining. But as we went along, one of the things that i found out in looking through the records was that the records started the position level and they worked down to rookie a level and then to the regimen level. And in the regiment level, we were going through some of the files and we came something called field and as i was lag at these, i realize these field messages were being written by men who were out in the field. Some of them were Intelligence Officers who were probably no further from the german lines than i am to the next desk in this room. Well, i was hooked by that time. And then, world war i became real for me and i was very interested in it. And it was like a fever among those of us who were working on that