Informative book about that details the history of the EU from its nascence after WWII in keeping neighboring countries talking to each other in an open forum so as to avert another war (primarily France-Germany) and eventually lead towards greater economic and cultural cooperation. In many respects, the EU has been wildly successful, as there have not been any further skirmishes between member nations and economically has been able to serve as a strong counterbalance to the US:
'On the occassion of his eightieth birthday in May 2010, Helmut Kohl told a German audience, "Today I'm convinced more than ever that European unification is a question of war and peace for Europe and for us, and the euro is part of our guarantee of peace."'
Though well-publicized challenges are all around that the EU must weather through today as it did in its infancy. Just as the US constitution was a bundle of compromises, so was the original EU formation (France giving up many of its cultural legacies, Germany giving up its central bank authority) - though we have seen many violations over the years that have led us to where we are today.
Ultimately, the EU started unraveling on account of the lack of truly political unity that made broadband policy coordination impossible:
'The Germans still stood squarely behind the opinion voiced by Bundesbank president Karl Blessing in the early 1960's that monetary union required a "common trade policy, a common finance and budget policy, a common economic policy, a common social and wage policy - a common policy all around" - in short, the kind of policy coordination that is hard to imagine without a full-scale political union.'
Further support for the benefit of political, cultural, and monetary unification:
'The United States, after all, can be considered "the world's most successful single currency union." "American," wrote Paul Krugman, "has a currency union that works, and we know why it works: because it coincides with a nation - a nation with a big government, a common language, and a shared culture. Europe has none of these things."' - although many within our country today would gladly throw this all away were it to help benefit their own individual financial situation (yes I'm talking about you Tea Partiers)
As well as violations to the rules/regulations:
'Nearly every country aiming for acceptance into the EMU applied statistical manipulation and creative accounting. These tricks included: keeping expenses out of the books; selling government assets and booking them as recurrent receipts; blatant exaggeration of expected income from the fight against fiscal and social fraud; announcing savings in expenditures that would never be executed and tax increases that would never become truly effective; ingenious manipulation of data on nominal GDP so as to make deficits and debt levels look smaller as a percent of GDP. Although Italy, Greece, Spain, and Belgium topped the list of suspects, even the German government tried to bend the rules by taking advantage of the Bundesbank's stock of gold.'
The benefits of a monetary union are undeniable:
'For example, the absence of currency conversion costs contributes to economic efficiency. Greater price transparency across countries helps the competitive process and lowers prices, keeping inflation in check and interest rates low [...] The single currency bans competitive devaluations, reducing trade tensions and protectionist inclinations in the common market for goods and services. Wild fluctuations in currency exchange rates had contributed to the devastating economic and political disruptions of the 1920s and 1930s.'
And the single currency helps furthermore to combat competition from the US, similar to American complaints about the RMB:
'European policymakers were most frustrated by the American authorities' unreceptiveness to complaints from Europe about the dollar's gyrations. John Connally, who served as secretary of the treasury under Richard Nixon, told European leaders complaining about the dollar's freefall in 1973-74 that "the dollar is our currency and your problem."'
Ultimately I believe, as does the author, that the EU will survive but never really thrive as the United States of Europe that Montesquieu once dreamed of. I don't see true cultural or political unification between such different member states ever coming to fruition (i.e. the ability of governments nor the people to ever compromise their own individual short-term desires for a longer term good), and without such a Nash Equilibria, the EU will likely remain as a strong body of power that continues to tread lightly on thin ice, but never able to combat the American or Chinese spheres of common influence.