What do you suppose O'Sullivan means by the Anglo-Saxon foot"?

Doc A:What do you suppose O'Sullivan means by "the Anglo-Saxon foot"? It refers to the arrival and settlement of white people. Doc A: How can this document be used to justify America's going to war with Mexico? The war would help America spread democracy and "civilized" values into western lands.

one of the main reasons was definitely slavery. back in 1861, republican abraham lincoln was elected and ended up being a major influence in the slavery business. slavery greatly affected the texas economy because back in 1845 during the annexation of texas, slaves became a big part of the texas population. many texans that were in favor of the secession influenced groups through party ties.