According to BBC, Canada, the U.S., the U.K., France, Italy, Japan, and Germany agreed on "free, fair, and mutually beneficial trade", as well as, the importance to fight protectionism.
Hours after leaving the G7 summit on Saturday, Trump took to Twitter to assault the Canadian Prime Minister Justin Trudeau's "false statements" and instructed U.S. representatives to renege on the US' endorsement of the joint communique.
Having left the meeting in Canada early, U.S. President Donald Trump said he was backing out of the group's joint declaration, sinking what appeared to be a fragile consensus on the trade dispute between Washington and its top allies.
Just as the G7 meeting of the world's leading industrialised nations had seemed to weather Mr Trump's threats of a trade war, the president backed out of the group's joint statement that Mr Trudeau said all the leaders had come together to sign.
Last week, Canada hit back at Trump administration by announcing retaliatory tariffs on up to 16.6 billion Canadian dollars (12.8 billion USA dollars) worth of US steel and aluminum as well as a diverse list of other products.
The remarks have enraged U.S. President Donald Trump.
SPD leader Andrea Nahles accused Trump of turning the G7 summit into a disaster with his tweets and bowing out of his global responsibilities.
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"Kim must not see American weakness".
Trump had said that the decision of the Indian government to reduce the tariff from 75 per cent to 50 per cent was not enough and asked that it should be reciprocal, as the USA imposes "zero tax" on the import of motorcycles. -Canada border. He said unleashing retaliatory measures "is not something I relish doing" but that he wouldn't hesitate to do so because "I will always protect Canadian workers and Canadian interests".
"Canadians are polite and reasonable but we will also not be pushed around", Trudeau said.
Hampson, whose most recent book is about former prime minister Brian Mulroney's diplomacy as North American trade deals were originally struck, said Mulroney has continued to be a behind-the-scenes adviser to Trudeau's government, as he has personal connections with some Trump insiders.
Trudeau said the communique has "strong commitments about the actions we are going to take".
But Trudeau later contradicted the president: "We will not, can not sign a trade deal that expires every five years".
In a pointed criticism of Trump's policy, May said that the most effective way of reaping the benefits of globalisation was through multilateral action, adding: "It can not be done by taking unilateral action against your partners".