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US President Donald Trump has torn the trade rules, which has existed for more than 50 years.

His last round of extensive tariffs, which came into force shortly after midnight on Wednesday, hit goods from some of the largest trading partners in America, including China and the European Union with dramatic increases in import obligations.

The president and his allies say that measures are needed to restore the production base in America, which they consider essential to national security.

But it remains a potentially seismic action that affects the import of more than 2TN worth, which will push the overall effective tariff rate in the United States to the highest level of more than a century.

In the United States, key consumer goods can see a huge price increase, including approximately 33% of clothing, and analysts warn of almost secure global economic damage, as sales in America decline, commercial contractions and production abroad are falling.

With the accumulation of the stock exchange and the political pressure in the United States that begin to build, the White House works to calm the nerves, sailing the possibility of commercial conversations, saying conversations that have already begun with Japan, Vietnam and South Korea.

But Trump signals the resistance to the types of exceptions he provided in his first term, and even if these conversations are ultimately productive, the conclusion of transactions in the country will no doubt take time.

“The main question … is whether there will be negotiations or not,” says Thierry Weasman, a global strategist at the Macquarie Investment Bank. “And no one has an answer to this, because it will depend on the approach and the disposition of the negotiating parties.”

The United States is already on a clash course with China, which was its third largest import provider last year.

The White House said on Tuesday that it was moving forward with the threat of Trump’s social media to add another 50% import fee from China, at the top of 54%, the obligations that had already been announced unless Beijing did not agree to withdraw his revenge.

Lyu Pengiu, a spokesman for the Chinese Embassy in Washington, declined to say whether the two countries spoke directly after the threat.

But publicly, China has shown little willingness to retreat, describing Trump’s moves as “harassment” and warning that “intimidation, threat and blackmail are not the right way to engage with China.”

“If the United States decides not to be interested in the interests of the US itself, China and the rest of the world and are determined to wage a tariff and trade war, China’s response will continue until the end,” he said.

The rapid changes have shook US enterprises with decades of relationships with China, which are now paralyzed and are not sure how this escalating trade can end.

“You would laugh if you didn’t cry,” said American businessman Jay Forman, whose toy company mainly fun! It is known for classics such as Tonka trucks and care bears, the greater part of which are made in China.

He informed his suppliers to stop any consignment in the United States earlier this week, as the US announced it would hit goods from China with obligations starting at 104%.

“We just have to keep our shipments until this thing is arranged,” he said. “And if not arranged, they will sell the inventory I have in my warehouse, and I will pray.”

Speaking to Congress on Tuesday, Jamison Greer, who heads the US sales representative, declined to determine a time line about how quickly they can progress.

“The president is fixed in his goal. This commercial deficit and offshoring and job loss continue for too long,” he said, admitting that measures could lead to a “challenging” economic correction.

“This is a moment of drastic, overdue change, but I am confident that the American people will rise to the occasion as they did before,” he said.

Shares in the United States resumed their slides down Tuesday, refusing early profits caused by commented on Trump about trade conversations that the battle could see a quick resolution.

The S&P 500 is now trading at its lowest level for more than a year after seeing approximately 12% of its value deleted after the message last Wednesday.

The stock markets from Japan to Germany are also shaken as investors appreciate the wider consequences of actions. In the UK, the FTSE 100 has dropped about 10%.

“What I really see is trembling, uncertainty, many questions, many people who want to predict what will happen next,” says Amy Magnus, Deringer’s Obness and Customs Director, a Vermont-based company, which is one of the top five customs brokers in America. “But I went into a world that I cannot predict.”

Erin Williamson, Vice President of US Customs Mediation at Geodis, a global supply chain operator, said on Tuesday afternoon, said uncertainty had encouraged some of the customers of her company to simply deliver a pause.

“One of the best ways you can confirm that you do not put your business at risk, it really lingers until the dust may settle,” she said.

Uncertainty is an increase in the risks to the economy, said Erni Tedeski, director of the Yale budget laboratory economy, which does not predict a recession in the United States, but still expects that the tariffs announced so far will cost 600,000 jobs in the United States and will lead to approximately $ 3,800 for the purchase of energy.

“Many of the market turmoil we have seen is not about the essence of the economic damage to the tariffs themselves. Many of this is about uncertainty,” he said.

“Business and users do not know what tariff rate will be in an hour … How can you invest or make plans for the future in this environment?”

G -n Tedeski said he did not see a clear end of the trade war in sight.

“Even if the administration wanted to step back, how does it save the person in a way that is mutually acceptable to all the players concerned?” he said. “This is getting harder than the day.”