Immigrants were drawn to Cities in the Northeast and Midwest because there was Housing and Job Opportunities.<span />
The islands made it hard to get from place to place.
It stemmed from the annexation of the Republic of Texas by the U.S. in 1845 and from a dispute over whether Texas ended at the Nueces River (the Mexican claim) or the Rio Grande (the U.S. claim).
Answer: they had to get a nother army
Explanation: cause they did