They didn't want to get involved in something considered not their affairs. It was the same with World War 2.
France, Britain, America, Italy.
America, Britain, France, and Italy.
Italy entered WW2 on June 10, 1940 when Mussolini attacked Great Britain and France. I hope this helps :)
The United States entered the war in April 1917 on the side of France, Great Britain, & Italy to defeat Germany in November 1918.
America, England, Russia, France, and Italy
Great Britain, France, and Italy
Because the Romans did not stay in Britain for as long as they stayed in France, Spain or Italy.
Britain, Russia, Japan, Belgium, Italy, Serbia and, later, America
Austria, Hungary, France, Germany, Britain, Italy, Russia, Poland, Belgium and eventually America
America+Britain+Soviet Union+France+Canada Against Germany+Italy+Japan
During World War I, Italy was one of the Allied Forces along with Britain, France, Russia, Japan, Serbia, Belgium and, late in the war, America.
Italy, France, China, and South America are all geographical locations.