With regard to citizens` rights, an agreement has been reached for the direct implementation of the withdrawal agreement, but there are still some differences of opinion on other important issues. The World Trade Organization (WTO) and the International Air Transport Association (IATA) are among the intergovernmental organisations that are also involved in thinking about the uncertainty of Brexit. IATA is waiting for an agreement to avoid disruption.  WTO: Chapter on sustainable development in the new free trade agreements (FTA) London wants to conclude its own free trade agreements independently of the European Union. A distinction must be made between two cases: first, the UK is a party to 42 EU free trade agreements for which it must negotiate successor agreements. In about half of these cases, most often with smaller partners, this is already done. These successor agreements are relatively easy to negotiate, as the essential provisions can be drawn from eu-free trade agreements. However, it is highly unlikely that the UK will get better market access than the EU, given that many of the existing EU agreements (. B for example, along with Canada, Japan, Vietnam) contain clauses of the most favoured nation.
These require the EU partner to offer the same trading conditions for goods and services that it provides to other industrialised countries (in the future, including the UK). This could prove particularly problematic for the UK financial sector, where the UK is hoping for greater openness and agreements with third countries. In 2018, the UK`s trade in goods and services was estimated at 1,400 billion pounds, of which 11% for countries with which the EU has trade agreements. May resigned as leader of the ruling Conservative Party on 7 June 2019 and on 23 July Boris Johnson was elected to succeed him.  The Johnson Ministry reopened negotiations on the withdrawal agreement on 28 August 2019, but said that the Irish backstop should be abolished, which the EU would not accept.  A Brexit withdrawal agreement was finally ratified by Britain and the EU and came into force on 1 February 2020. Brexit negotiations for a trade deal between the EU and Britain have begun. In addition, the EU`s existing free trade and WTO tariff quotas with third countries (which were agreed while the UK was still a member) may need to be distributed or renegotiated.  The legal negotiating deadline began on 29 March 2017, when the letter of notification of the withdrawal letter, approved by the European Union notification in 2017 and signed by the British Prime Minister, was delivered to the President of the European Council. The letter called for a “deep and special relationship” between the UK and the EU and warned that a failed agreement would lead to trade between the EU and the UK under World Trade Organisation conditions and a weakening of UK cooperation in the fight against crime and terrorism.
The letter proposes to quickly agree on the rights of EU citizens in the UK and vice versa. In the letter, the Prime Minister explained that the UK would not try to stay in the ESM because EU heads of state and government did not want a “cherry harvest” from the ESM.