One very negative consequence of increased feelings of nationalism after WWI was the rise of fascism or so-called national socialism in countries like Germany and Italy. These governments appealed to nationalism and blamed such groups as the Jewish people for their economic problems in the late 20's and early 30's and also believed they had the right to invade and control other countries.
Supreme court's are the best examples of appellate courts where the final review of civil as well as criminal cases is organised. Even original jurisdiction is practiced in supreme court.
