It is in the best interests of both the United Kingdom and the European Union that we should use the forthcoming process to deliver these objectives in a fair and orderly manner, and with as little disruption as possible on each side. We want to make sure that Europe remains strong and prosperous and is capable of projecting its values, leading in the world, and defending itself from security threats. We want the United Kingdom, through a new deep and special partnership with a strong European Union, to play its full part in achieving these goals. We therefore believe it is necessary to agree the terms of our future partnership alongside those of our withdrawal from the European Union.

 

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From the start and throughout the discussions, we will negotiate as one United Kingdom, taking due account of the specific interests of every nation and region of the UK as we do so. When it comes to the return of powers back to the United Kingdom, we will consult fully on which powers should reside in Westminster and which should be devolved to Scotland, Wales and Northern Ireland. But it is the expectation of the Government that the outcome of this process will be a significant increase in the decision-making power of each devolved administration.

 

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The United Kingdom wants to agree with the European Union a deep and special partnership that takes in both economic and security cooperation. To achieve this, we believe it is necessary to agree the terms of our future partnership alongside those of our withdrawal from the EU.

If, however, we leave the European Union without an agreement the default position is that we would have to trade on World Trade Organisation terms. In security terms a failure to reach agreement would mean our cooperation in the fight against crime and terrorism would be weakened. In this kind of scenario, both the United Kingdom and the European Union would of course cope with the change, but it is not the outcome that either side should seek. We must therefore work hard to avoid that outcome.

 

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We also know that UK companies will, as they trade within the EU, have to align with rules agreed by institutions of which we are no longer a part – just as UK companies do in other overseas markets.

Source: Article 50 letter: Read Theresa May’s full message to the EU as Brexit begins | The Independent