In document D it also said that America was pro-slavery and wanted to expand their ideas to Texas. This evidence shows why the US was not justified in going to war with Mexico because the US forcefully expanded their ideas of slavery in Texas, which was unwanted by Mexico. …show more content…
It also said in document C that Matamoros was a city in the disputed area of land between Mexico and the US. This action from the Americans triggered the battles of Palo Alto and Resaca de la Palma. This evidence shows the US was not justified in going to war with Mexico because America invaded disputed territory, leading to the small battles where 16 Americans were