This has sometimes led to controversies between Europe and US i.e. on principles of international law to be used in international relations, protection of personal data, as well as to occasional flaring up of American-European trade, monetary or financial conflicts.
Since the end of the cold war, Europe and USA have been searching for a new definition of their relationship. The fall of bipolar world has set off a new American dynamism and boosted the awareness of the unique military as well as economic superiority of the US. This has sometimes led to controversies between Europe and US i.e. on principles of international law to be used in international relations, protection of personal data, as well as to occasional flaring up of American-European trade, monetary or financial conflicts. These disagreements however should be viewed more as labour pains of a new post-cold-war transatlantic relationship rather than its death toll.