On the heels of a rocky trip to Paris to mark the World War I centenary, Mr Trump on Tuesday fired off a caustic series of early-morning tweets against his weekend host and renewed his frequent charge that America's European allies in North Atlantic Treaty Organisation spend too little on defence.
Trump derided Macron's proposed "European army" in tweets - bringing up German military aggression in World War I and World War II as he accused the French president of turning on him to boost his own popularity ratings. They started learning German in Paris before the arrival of the United States. "Pay for North Atlantic Treaty Organisation or not!" tweeted the president, who returned from a trip to France on Sunday.
"But perhaps Europe should first pay its fair share of North Atlantic Treaty Organisation, which the U.S. subsidizes greatly!" he said.
Getty President Trump unleashed a torrent of disparaging remarks about "Nationalist" France, President Emmanuel Macron's approval ratings and wine tariffs.
He also said "there is no country more Nationalist than France" and ended with a flourish of: "Make France Great Again!"
But Macron, with Trump listening nearby at Sunday's centenary of the end of World War I in Paris, deplored rising nationalism throughout the world, declaring it a "betrayal of patriotism". Macron has said he wants Europe to bear a greater share of the defence costs within North Atlantic Treaty Organisation, a point he has made repeatedly since taking office.
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The tweets underscored tensions between the once-friendly leaders and displayed Mr Trump's irritation over criticism of how he acted in France. "We need their support", she said. Among them are Prime Minister Justin Trudeau of Canada, whom Trump derided just after the Group of 7 summit meeting as "very dishonest and weak" and making "false statements". But it was Germany in World Wars One & Two.
Since assuming office past year, the Trump administration has long accused Europe of failing to pay enough for North Atlantic Treaty Organisation, and of causing large trade deficit on the U.S. side through unfair trade practices.
But President Trump, never one to back away from a challenge, hit back on Tuesday on social media.
"By the way, when the helicopter couldn't fly to the first cemetery in France because of nearly zero visibility, I suggested driving. Secret Service said NO, too far from airport and big Paris shutdown". Speech next day at American Cemetery in pouring rain!
On Tuesday, Trump fired off a caustic series of tweets against his weekend host and renewed his frequent charge that America's European allies in North Atlantic Treaty Organisation spend too little on defence.