I hope this helps. they came, because of the widespread starvation in ireland in 1845. the california gold rush attracted chinese immigrants in 1849
Answer:
That when there were American troops near their territory the Mexican troops shot at them since Mexico claimed that the Nueces River wascthe Northeastern border(US) while the US said that the Rio Grande was their border so war broke out
Answer: The entry of the United States was the turning point of the war, because it made the eventual defeat of Germany possible. It had been foreseen in 1916 that if the United States went to war, the Allies' military effort against Germany would be upheld by U.S. supplies and by enormous extensions of credit.
