Answer:
Inside Out and Back Again by Thanhha Lai is a novel in verse that tells the story of a young girl named Hà and her family's journey from Vietnam to the United States as refugees during the Vietnam War. The historical event of the Vietnam War affects the plot of the story in several ways:
1. It creates the conflict that drives the story: The Vietnam War and the resulting political turmoil and violence force Hà and her family to flee their home and become refugees. This sets the stage for the rest of the novel, which follows their journey to a new country and their struggles to adapt and rebuild their lives.
2. It shapes the characters and their experiences: The characters in the novel are all deeply affected by the war and its aftermath. Hà and her family suffer from the trauma of leaving their home and losing loved ones, while their experiences as refugees in the United States are shaped by the cultural and political context of the war.
3. It provides a historical context for the novel: The Vietnam War is an important historical event that shapes the cultural and political landscape of the novel. By referencing real-life events and historical figures, the novel helps readers to understand the broader context in which the story takes place.
Overall, the historical event of the Vietnam War is a central part of the plot and themes of Inside Out and Back Again, shaping the characters' experiences and providing a historical context for the story.