Beginning of Essay
The time of change in the region called the "borderlands" occurred during the period between 1880 and 1940. The region became urbanized and ended its years of isolation from the rest of the world. In the past the region's economy was based on ranching and farming. ....

Middle of Essay
.... supplies. The majority of the weapons and supplies for the Revolution was brought in the United States. The border cities in the United States became the chief suppliers of guns to the Revolution. This form trade was illegal and mainly done on the Black Market. The legal trade that existed before the Revolution disappeared with the outbreak of war. Mexico had closed the border during the conflict to prevent the supply of arms. The United States had also tried to stop the flow of arms but not successful. Eventually the United States had sent troops to the region when the fighting spilled over the border. The troops stayed in the region after the Mexic ....