The U.S. in 1846 was not justified in going to war with Mexico, they didn't have justification to respond with violence.
It mainly included the minority of Europe. These people included, but are not limited to, the jewish, slavic, and political opponents of Hitler. Eastern Europeans were less likely to be imprisoned during the holocaust
Abolitionism is one of the many factors that lead to conflict between northern and southern states. This movement focused on getting rid of the institution of slavery. By emancipating (freeing) these slaves, Southern plantation owners would suffer a significant loss in profits, as slaves were not paid for their work.
This threat to Southern society caused them to rebel against this idea and any individual who supported it. This fear of freeing slaves ultimately lead in the secession of the Southern states, as the election of Abraham Lincoln in 1860 posed a serious threat to their way of life.
Involving us in world war 2
One piece of information that the geographer might be able to convey more clearly than the economic historian would be exactly how geographic features such as mountains and lakes influenced the rise of certain societies.
