The vice president of the European Commission, marosh sevcovic, recently issued a statement saying that Britain has not shown any sincerity in the implementation of the "Northern Ireland Protocol". If the two sides renegotiate the "Northern Ireland Protocol", it will lead to instability in Northern Ireland and seriously affect the relationship between the EU and the UK. After the United Kingdom officially withdrew from the EU on January 31, 2020, the two sides had constant disputes over fishery, justice and other issues, and the biggest focus of the dispute was the trade status of Northern Ireland. According to the "Northern Ireland Protocol" previously reached, after Britain's "brexit", Northern Ireland will continue to stay in the European single market and the EU customs union to avoid a "hard border" with Ireland. This objectively leads to the need for customs inspection of goods entering Northern Ireland from other parts of the UK. Britain has not fully complied with the contract because of its dissatisfaction with the resulting sluggish domestic trade. Since this summer, the dispute between Britain and Europe over food exports has expanded rapidly, and the voice for renegotiating the contents of the protocol has been rising in Britain. Britain hopes to abolish the border inspection of most goods entering Northern Ireland from home, and abolish the final arbitration power of the European Court of justice over the protocol. Worried that the British side may continue to put forward more other requirements, the EU refused to modify the content of the protocol and asked to find solutions under the original framework, including reducing the inspection frequency and simplifying relevant procedures, but it was not accepted by the British side. British Secretary of state frost recently warned that if the negotiations fail to make a breakthrough, the British side will consider unilaterally suspending the implementation of the protocol. In this regard, the European side said that Britain will face serious consequences if it persists. The Irish government also said that the EU may consider taking drastic countermeasures, including abandoning the whole "brexit" agreement. Bernard, an EU law expert at Cambridge University, said that once the EU terminates the bilateral trade and cooperation agreement, the UK will be forced to trade with the EU within the framework of WTO principles, which will put the UK at the disadvantage of de facto "no agreement brexit". In addition, the EU may choose other countermeasures, including stricter inspection of British imports and imposition of tariffs. At the same time, representatives of the British business community urged the government not to tear up the relevant agreements reached with the EU, otherwise British exports will suffer a serious blow, which will affect the security of the supply chain and the stability of investment. Alan, head of the British Meat Processors Association, said that once the British European trade war broke out, it would bring a devastating blow to the whole British food industry. Mike Kenqi, head of the British road transport association, said that if the negotiations break down, the EU will take more stringent inspection measures at the border, which will lead to a serious decline in transport efficiency and domino effect, which will have a negative impact on the logistics industry and put more pressure on the already tight supply chain. The research of the National Institute of economic and social research shows that the risk of long-term stagflation of the British economy in the next few years is increasing due to the bottleneck of the supply chain and the impact of "brexit". In 2022, the UK inflation rate may reach 5%. In 2023, the UK's economic growth will decline from 4.7% to 1.7%. In addition, according to the prediction of the UK budget responsibility office, in the long run, "brexit" will reduce the UK economy by 4%, far exceeding the impact of the epidemic on the economy. With the gradual decline of epidemic factors, the follow-up impact of "brexit" on the British economy will further appear. (outlook new era)