Key term for AQA GCSE History, used in America: Expansion and Consolidation (1840–1895).
President Buchanan’s decision to send the US army to Utah without first notifying Brigham Young of his removal as governor, triggering a military standoff.
Buchanan’s Blunder appears in AQA GCSE History revision content for Period Studies, especially America: Expansion and Consolidation (1840–1895) and The Mormons.
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