Conflicts - What are the major problems? Why are they problems?

Hola! Me llamo Grayson, from Mrs Quinn's 5th period class. I believe one of the big problems in The River Between Us is the Civil War. The time period in which this book takes place is during the Civil War. The Pruit family is worried about how their business will do because of the Civil War. I predict that Noah will join the war which will upset Mamma.
Hey its Shea from Mrs. Quinn's 1st period class. I completly agree with you Grayson. In pages 50-100 LOTS more problems come. Like the people in the town start saying Delphine is a spy for the south and they say Tilly's family is stupid for keeping her there. Also Noah goes to war and mama says she has visions like Cass and she knows Noah is horribly sick and won't rest until Tilly agrees to go down and make him better.
Hi, Its Shea from Mrs. Quinn's 1th period class. So an External confict is a struggle between a character and an outside force.Tilly and Delphine go down to Cairo where Noah is and he is sick, but not dying. He is in a very unsanitary tent full of other sick soldiers. Delphine and Tilly nurse all but one of the soldiers back to health. Noah goes and fights in a battle and LOSES HIS ARM. He remembers nothing of Tilly or Delphine. In this mess another conflict comes up, it is an external conflict, man vs. society. The person renting out the summer kitchen Tilly and Delphine are staying at notices Delphine's skin color is different, and comes to the conclusion she is of mixed origin. This is true. Her mother was colored and her father was white. The owner of the summer Kitchen disgraces Delphine. Delphine tells Tilly all about it, how she really had no aunt in St. Louis and that Calinda is her sister and she can ever really marry a white man. After the war this could cause a problem for Tilly's family, so calinda moves to California.
Hi, this Grayson. I agree on your definitions. One external conflict is women vs. women. During Delphine and Cadlinda's stay at the Pruit family's house there were many problems. Mama makes Delphine and Tilly go after Noah. I'm sure Delphine wasn't to happy about that.