Answer:
1. The dictatorship-like rule of Porfirio Diaz for over 30 years.
2. Exploitation and poor treatment of workers.
3. Great disparity between rich and poor.
Explanation:
<span>Wherever the Union armies went in the South (after the Emancipation Proclamation), they were under orders to liberate any slaves they found. </span>
In the United States, it was the "War Hawks" who <span>supported declaring war against England in 1812, since they believed that such a war would enhance the standing of the US internationally. </span>
