Italy is the country that changed sides about a year after World War I began and joined new sides. Italy was actually part of an alliance that included the countries of Austria-Hungary and Germany. It was actually part of the Triple Alliance before World War I. I hope the answer helps you.
The military plans laid before World War I presupposed a major war between the countries which were tied together with alliances. Because the Triple Entente had Britain, France and Russia as allies, Germany thought if a war began it would need to fight on two fronts -- west and east. So German Field Marshall Alfred von Schlieffen drew up war plans that said attack France first, quickly, and then hold that territory while deploying forces to contend with Russia in the east. So when Germany declared war on Russia in 1914, the first thing it did was to go and attack France. Thus the war spread and became instantly a more global conflict.
National leaders in politics and the military need to learn caution when dealing with alliances and when committing themselves to military action. Restrained, limited military actions are preferable to the all-out plunging into war that was seen in the outbreak of World War I. Diplomacy should be given its best chance to work before resorting to military options -- even if military options have been pre-planned.
John Brown was seen as a hero
I would go with Lavish Spending by the royal court.
Versailles had over 30 water fountains? Each were power by hand.
I know financing the American Revolution was expensive, and took several decades to pay back France.
America considers it paid particularly from WWI and WWII.
