Nick does not believe Gatsby's story. Most of the story seems unlikely and the other part just doesn't seem right, so Nick does believe he is hearing the truth.
Nick believes Gatsby's story about the war because he sees the genuine emotion and passion in Gatsby's recounting of his experiences. Gatsby's detailed descriptions and conviction make Nick trust him, despite there being no concrete evidence to prove the truth of the story. Additionally, Nick admires Gatsby and wants to believe in the best in him.
Gatsby recognizes Nick from the war when they were both served in the same division. Nick mentioned to Gatsby that he was from the Midwest, which caught Gatsby's attention.
When Nick meets Jay Gatsby shortly after midnight, they talk about Gatsby's past and how he came to acquire his wealth. Gatsby tells Nick about his time in the war and his longing for Daisy Buchanan, whom he loves. Overall, their conversation revolves around Gatsby's mysterious persona and his connection to Daisy.
Nick and Gatsby met at a party that Gatsby threw at his mansion in West Egg. Gatsby had been watching Nick's house from across the bay and purposely chose to introduce himself to Nick.
A medal from the war
Gatsby shows Nick a medal from his time in the war to prove his identity and establish credibility.
Jordan tells Nick that Gatsby and Daisy had a romantic relationship in the past when Gatsby was a young officer. Daisy promised to wait for Gatsby, but eventually married Tom Buchanan because Gatsby was poor at the time.
Gatsby's medal was from the government of Montenegro, where he claimed to have been decorated for valor during World War I.
Nick Carraway, the narrator of "The Great Gatsby," is from a small town in the Midwest but moves to New York City to work in the bond business.
Yes, he was. Gatsby was in the seventh infantry.
Gatsby asks Nick to help him with Daisy and to arrange a tea date at Nick's house, making Nick uncomfortable because he feels caught in the middle of their relationship.
In "The Great Gatsby," Jay Gatsby tells Nick Carraway that he inherited his wealth from his family. However, it is later revealed that Gatsby actually acquired his fortune through illegal activities like bootlegging and other criminal enterprises during the Prohibition era.
Gatsby reveals to Nick that he comes from a wealthy family in the Midwest, but that he lost his family fortune and had to start from scratch. He also tells Nick that he served in the military during World War I and attended Oxford after the war.