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Causes of the Mexican-American War
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AP U.S. History
APUSH.150 Causes of the Mexican-American War
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A timeline shows Texas annexation in December 1845 and a U.S. war declaration in May 1846. What best explains the rapid escalation?
A
The United States had already completed Reconstruction by 1846
B
Annexation immediately intensified unresolved questions of sovereignty, boundary, and military control
C
Mexico and the United States had no territorial dispute after annexation
D
The Oregon Treaty required the United States to fight Mexico
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