They formed committees to send African American Slaves to Canada.
The ultimate goal of the United States in their intervention in Mexico in 1914 was to have a neighbor that is stable, that they will be able to influence and control to a certain level, and protect their economic and political interest.
The intervention of the United States was a very variable and very controversial. They did not stick with one side to support, but instead they were changing sides, usually supporting the person in power, except when the French intervened too.
Also, the USA openly threatened Mexico that it will use military power in order to protect its interests and its citizens that own businesses and property in the country.
Answer:
The early effects of The Great depression on Mexico were directly felt by the mining sector in which the overall export price index fell by 32% from 1929 to 1932. The real value of Mexican exports fell by 75%, output by 21%, and external terms of trade fell by 50% between 1928 and 1932. Beginning around the 1890s, new industries in the U.S. Southwest—especially mining and agriculture—attracted Mexican migrant laborers. The Mexican Revolution (1910-1920) then increased the flow: war refugees and political exiles fled to the United States to escape the violence.