An outbreak of racial violence known as the “Red Summer” occurred in 1919, an event that affected at least 26 cities across the United States. Racial tensions across the U.S. were exacerbated by the discharge of millions of military personnel back to their homes and domestic lives following the end of the war.
Peter mentions thinking about converting to Christianity after the war, this will make his life easier. Anne thinks Peter has an inferiority complex because of this.