The failure of Irish voters to ratify the Lisbon Treaty points to a problem for Europe that goes far beyond that specific referendum. The vote in Ireland, coupled with the rejection by voters in France and the Netherlands in 2005 of the now failed European Constitution, provides indisputable proof that many European citizens are strongly suspicious of the European Union and that European leaders must take strong action to remedy the misperceptions of those citizens. There are a variety of reasons why voters rejected the Constitution and now the Lisbon Treaty that have been commented on extensively. But as an outsider, I would submit that the most significant underlying reasons for rejection were a lack of understanding of the EU as an institution, the perception of its "unaccountability" and a resulting lack of loyalty to the EU as an entity. Speaking as a friend of Europe and as a strong proponent of transatlantic relations, I believe that these are the major issues that European leaders must address. The EU must have a "face" to which Europeans can relate. The chickens have finally come home to roost. If the EU is to move forward and deal with the challenges of the future, it can afford no longer to be viewed by much of the public, albeit unfairly, as a "mindless" bureaucracy running people's lives from Brussels.

European leaders must think about and be able to provide understandable answers to the most basic questions. What is the EU? How many Europeans can answer that question? Is the EU the equivalent of a nation-state with full sovereignty? Clearly not. Is it some kind of supra-national organisation where members have agreed to share sovereignty in agreed upon areas? That is a start but can it be articulated in a simple understandable way? Do Europeans have any idea as to how decisions are made within the EU? How many Europeans understand the "qualified majority" voting system? It would take a mathematics major to understand how votes are calculated, let alone the multiple layers of decision-making. Is there a simple way to explain how the EU is accountable to European citizenry? How does the EU serve the common good? If the EU remains a mystery to many Europeans, there should be little mystery as to why voters are uncomfortable expanding its powers. It is no wonder that when voters think that they are facing a choice between "national sovereignty" and surrendering sovereignty to a little-understood institution that may impinge on their perceived security, they will vote for "national sovereignty".

If the EU is so little understood in Europe, one can only imagine the lack of understanding among Americans. When I was nominated in 1999 by President Clinton to be the United States Ambassador to the European Union, the most common questions that were asked by my friends were: What is the EU? Isn't that the economic organisation in Europe? Or are you our first ambassador to the EU?

One can also understand why American policymakers, whichever party is in power, have often been reluctant to deal with the EU as an entity and retreat to working through member states. Over recent years US administrations have better recognised the need to work with the EU, and the US and EU have accomplished much working together. But still too often policymakers have become befuddled and frustrated in dealing with the EU. So, for example, even with the ups and downs of the US-French relationship, some US policymakers are more comfortable dealing with France than with the EU because there is a history to the relationship. We have been working with France for over 200 years. There is a texture to the relationship that does not exist with the EU. Until that texture begins to develop, policymakers will often tend to look first to the member states.

Ironically, the Lisbon Treaty would begin to put a face on the EU. The EU would have a president with a set term and a single person responsible for the implementation of EU foreign policy. The treaties upon which the EU is based would be incorporated into a single document. More efficient procedures to deal with an enlarged EU would be put in place. From an American standpoint the treaty should enhance US-European co-operation in areas of vital common interest.

But for the Lisbon Treaty to be ultimately ratified in Ireland and to be accepted by citizens in the other member states even though a referendum is not required in those states, Europe needs to get back to the basics and leaders must be able to explain what the EU is, how the EU is accountable to Europe's citizens and why the Treaty is in the interests of all Europeans.

Ambassador Richard L. Morningstar served as Ambassador to the European Union from 1999-2001. He is a Senior Director at Stonebridge International, a global strategy firm, a Lecturer at Stanford Law School, and an Adjunct Lecturer at the Kennedy School at Harvard University.