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The examples and perspective in this article may not represent a worldwide view of the subject. (September 2021)
Its origins in the United States date back to the Mexican and American Wars of Independence and the struggle over the disputed Southwestern territories. That eventually would lead to the Mexican–American War in which the defeat of Mexico caused a great loss of territory. In the 20th century, anti-Mexican sentiment continued to grow after the Zimmermann Telegram, an incident between the Mexican government and the German Empire during World War I.