The exam paper focuses on the United States from 1865 to 1975. Section A analyzes American policies in Vietnam, exploring the escalation of the conflict under Presidents Kennedy, Johnson, and Nixon, with a focus on military strategies and geopolitical considerations. Section B examines key historical topics: the economic growth of the US from 1865 to 1890, the rise in social and ethnic divisions from 1890 to 1920, and the role of federal government expansion in domestic politics between 1921 and 1941. Key themes include foreign policy, economic development, and social dynamics in the context of US history.