America planned a war with Mexico called War Plan Green,what was behind this?

During the 1910s, relations between Mexico and the United States were often troubled. . In 1912, U.S. President William Howard Taft considered sending an expeditionary force to protect foreign-owned property from damage during the Mexican Revolution that was taking place. As a result, War Plan Green was developed. In 1916, U.S. troops under General John Pershing invaded Mexico in search of Pancho Villa, whose army had attacked Columbus, New Mexico. Earlier, American naval forces had bombarded and seized the Mexicanport of Veracruz, and forced Victoriano Huerta to resign the presidency.

The biggest incident came in 1917, when British intelligence intercepted a telegram from the German foreign ministry to its embassy in Mexico City offering an alliance against the United States and assistance in the Mexican reconquest of the Southwest. Released to American newspapers, the Zimmermann Telegram helped turn American opinion against Germany and further poisoned the atmosphere between the US and Mexico. Relations with Mexico remained tense into the 1920s and 1930s.

War Plan Green
War An Green was developed in 1912. It involved war with Mexico or what was known as “Mexican Domestic Intervention” in order to defeat rebel forces and establish a pro-American government. War Plan Green was officially canceled in 1946.

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