this week, amanda foreman's latest book, "a world on fire": britain's crucial war in the american civil war. the author reveals many citizens on both sides of the civil war for a host of personal and political reasons. she talks about the lesser-known influence in the work dissension with pulitzer prize-winning historian, eric foner. >> i'm very happy to be speaking today with amanda foreman, the author of the new book, "a world on fire" britain's crucial role in the american civil war, which has gained a great deal of attention come a fascinating book about a nice conversation about britain, the american civil war and writing about civil war history. so hello, amanda. >> guest: hello, eric. >> host: i will begin by asking if someone said there's about 50,000 books on the american civil war out there. when and why did you come to a conclusion you have something new to save the? how did you get into the book and get interested in why did you write it? >> guest: well, my first book was about 18th century touches and because of that often the very first question i get when i'm get when i'm