President Donald Trump and Japanese Prime Minister Shinzo Abe shakes hands during a news conference in the Rose Garden of the White House in Washington, June 7, 2018. He engaged him on Twitter.
At the heart of the rift, US President Trump's new tarrifs on steel and aluminium imports - and the threat of a global trade war. "Because these 6 countries represent values, they represent an economic market which has the weight of history behind it and which is now a true worldwide force", Macron tweeted out.
Trump and other world leaders don't agree on a wide range of issues from trade to the environment as well as Iran and the construction of a new USA embassy in Jerusalem.
It has also been suggested that Mr Trump had not been keen to attend the summit at all, with expected criticism and his meeting with North Korean leader Kim Jong Un looming.
"Macron was definitely getting more phone calls than other European leaders, so it looked at first like it was paying off", Julianne Smith, a former deputy national security adviser to Vice President Joe Biden, told Politico.
A few hours later, he added, "Take down your tariffs & barriers or we will more than match you!"
On cam: New Jersey cops punch woman on a beach
An attorney for 20-year-old Emily Weinman , of Philadelphia, told Philly.com the charges against Weinman are exaggerated. The officers involved in the incident have been identified as Ptlm. "You have a young lady who was out of control".
The globalised economy they helped build had both winners and losers but, until Trump's election, the United States was seen as the system's uncontested leader and a major beneficiary.
"Looking forward to straightening out unfair Trade Deals with the G-7 countries".
In Germany, top officials called for Europe to remain unified in the face of rising trade tensions with the United States even as they maintained that America remained its closest partner outside of the continent.
Meanwhile, talks to renegotiate the North American Free Trade Agreement that eliminated most tariffs and duties between the U.S., Canada and Mexico appear to have ground to a halt.
"One risk is that others will take advantage of this apparent vacuum in American leadership and the lack of trans-Atlantic consensus and act in ways that will harm trans-Atlantic interests, whether it's Russian Federation in the Eurasia. or China in Asia", said Ian Lesser, of the German Marshall Fund. European allies have urged Trump to reconsider.
Leaders in Europe, Canada, and Mexico have vowed to retaliate against these tariffs with economic penalties against US exports, but so far Trump has been unmoved.
"This is the first time the US government is seen as truly acting in bad faith, in treating allies as a threat, in treating trade as negative and fundamentally undermining the system that it built, " said Adam Posen, president of the Peterson Institute for International Economics.
Canada also announced retaliatory tariffs on $12.8 billion (£9.5 billion) worth of U.S. goods, including steel and aluminum products, mayonnaise, and sleeping bags.