Council on Hemispheric Affairs, September 12, 2008 - “The Mexico-Guatemalan border has been a troubled zone since the Americas gained their independence from Spain in 1821. Since the closing of the colonial era towards the end of the 19th century, repeated incidents have plagued the region encompassing southern Mexico and western Guatemala. The current border came into being after the two nations signed the Treaty of Limits. Nowadays, the bulk of the concern over the border involves Guatemalan migrants crossing the border trying to eventually gain illegal entrance into the U.S. Disputes between the two countries revolve around both the undocumented migrants trekking through Mexico as well as those with final Mexican destinations.” Read more.