Determined to spread the "manifest destiny" of U.S. expansion southward into Latin America, a young American adventurer named William Walker and 45 followers invaded Baja California, in northwestern Mexico.  (By Brian Bockelman)
Source Citation
              David F. Marley, Wars of the Americas: A Chronology of Armed Conflict in the New World, 1492 to the Present (Santa Barbara, California:  ABC-CLIO, 1998), 522.
Record Data
Date Certainty
              Exact
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