By culture and just the life style they lived . I’m not really sure to be exact but yea
The reasons why President Lincoln believed that the U.S soldiers were fighting for during the American Civil War is that he had high hopes of preserving the union as well as helping the union survive. President Lincoln had only one goal in this Civil War and it was to restore the union. Hope this helps.
“The M.A.I.N. causes of World War I were Militarism, secret Alliances, Imperialism and Nationalism. The driving force was nationalism. ... The igniting incident of the “Great War” was the assassination of the Archduke Franz Ferdinand, heir to the Austro-Hungarian Empire, in Bosnia by a Serbian nationalist.