Like Canada, the European Union is preparing counter-measures against USA tariffs on steel and aluminium imports, in line with World Trade Organisation rules, Merkel said.
European Union nations' failure to speak and act with one voice overseas is a "danger", Merkel warned, as is the fact "that we have no collective approach to the question of managing migration", vital if freedom of movement within Europe's borders is to be upheld.
"We won't let ourselves be ripped off again and again", Merkel said.
"I can not be part of an integration summit where there is one participant who in an article compared my strategy on homeland to the homeland understanding of the Nazis", Seehofer told reporters. Highlighting that the document is still "legally-binding" as far as Germany is concerned, Merkel said she would uphold it but her patience after Trump's about-face had worn thin.
Trump has already announced tariffs on steel and aluminum imports from Canada and Europe, which will impact major exporter Germany and he intends to hit another key sector for the German economy-auto exports.
Companies likely to take advantage - slowly - of net neutralitys end
Those last two should stick out to you, as they have been key points in the debates surrounding net neutrality rules. Nor could they charge Netflix and other video services extra to reach viewers more smoothly.
The picture (and many memes) have since gone viral on the internet, and Trump raised it himself at the news conference after he was asked about his relationship with Canadian Prime Minister Justin Trudeau.
Mr Trump had already threatened to divide the G7, made up of the US, France, UK, Italy, Germany, Japan and Canada, when he suggested Russian Federation should be allowed to rejoin the group. "But if you include services in the trade balance, the US has big surplus with Europe".
Meanwhile, Trump's off to Singapore to meet up with North Korea's Supreme Leader Kim Jong-un who landed in the country earlier today.
Trump's tweets appeared to single out Trudeau, alleging he was "very dishonest & weak" in a series of Twitter posts as he backed out of the joint statement on fair trade, saying it should now be called "fool trade".
Trump advisers Larry Kudlow and Peter Navarro nonetheless toed the presidential line, savaging Trudeau in Sunday show appearances over what Kudlow acknowledged were "things that the prime minister has said before, basically". In late May, Washington slapped its allies with import tariffs on steel and aluminum after it failed to win concessions from its trading partners. Then you carry your eyes toward the border of the picture and spot French President Emmanuel Macron and British Prime Minister Theresa May. We are sticking to them and whoever reneges on them is showing incoherence and inconsistency.