During the Holocaust, the Jews were being persecuted by the Nazis. This is an example of a character vs. society conflict because a group of people including the Franks are being harmed by a large society. Many Jews were being thrown into concentration camps causing millions of deaths. This causes the Franks to go into hiding. Therefore, the story would not have happened without this conflict.
Mr. and Mrs. Van Daan are constantly arguing and fighting. In fact, Anne writes about them many times in her diary telling the reader about how they yell and fight. At one point, the Van Daans have become bankrupt causing even more conflicts between the two. This is a character vs. character conflict because it involves two different characters.
During her time in hiding, Anne is constantly struggling against her depression. At times, she begins to loose hope and feel rather down. This conflict greatly affects Anne emotionally during her time in the Secret Annex. This is a character vs. self conflict because Anne is struggling against herself.