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It stemmed from the annexation of the Republic of Texas by the U.S. in 1845 and from a dispute over whether Texas ended at the Nueces River (the Mexican claim) or the Rio Grande (the U.S. claim).

Is that why the cartels got started???

User Dearlbry
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2 Answers

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The Mexican American war
User Bistro
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8 votes

Answer:

The Mexican American war

Step-by-step explanation:

User Neha Mangla
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