Which novel written by Ernest Hemingway features themes of disillusionment?

The novel "The Sun Also Rises" by Ernest Hemingway is a quintessential representation of themes of disillusionment, particularly in the context of the post-World War I generation, often referred to as the "Lost Generation." The narrative follows a group of expatriates disenchanted with traditional values and searching for meaning in their lives after the devastation of the war. The characters, including the protagonist Jake Barnes, embody a sense of aimlessness and emotional detachment, reflecting their struggles with personal and societal ideals.

This exploration of disillusionment manifests through their experiences in Paris and their trip to Pamplona for the running of the bulls. The attitudes of the characters and their relationships reveal a deep-seated cynicism and loss of faith in the world around them, characteristic of Hemingway's style, making it a clear illustration of these themes.

In contrast, while "A Farewell to Arms" also deals with disillusionment, it presents a more explicit narrative about war and its effects on love and identity. "The Old Man and the Sea," while rich in themes of struggle and perseverance, does not primarily focus on disillusionment as a central theme. "For Whom the Bell Tolls" engages with issues of war and sacrifice but