At A Level we study the CAIE Cambridge syllabus, 9489. Specifically the American options in both Yr 12, Paper 1 and 2, and Yr 13, Paper 4, and the Origins of the Cold War as the interpretations option for Paper 3.
Below are web pages that have past papers students can use for revision and exam technique practice.
https://pastpapers.papacambridge.com/papers/caie/cambridge-advanced-as-and-a-level-history-9489
https://papers.gceguide.com/A%20Levels/History%20(9489)/
https://www.cienotes.com/as-and-a-level-history-9489-past-papers/
Below is the Mr Allsop History website link. It has pages related to the American Civil War which are relevant for Yr 12. They are for IGCSE, but are still useful for revision.