The French President, a staunch Europhile, showed no signs of weakening his tough stance on Brexit when he delivered a speech in Paris today.
Mr Macron said his "priority" in the negotiations was to ensure the unity of the EU rather than concluding a favorable trade agreement with Britain.
His comments are likely to infuriate Theresa May, who held one-on-one talks with Macron in France earlier this month.
Speaking to French Ambassadors at the Elysee Palace, Mr. Macron said, "Brexit is a sovereign decision that we must respect."
"B ut can not go at the expense of the integrity of the European Union n ."  "France wants to maintain a strong, special relationship with London, but not if the cost of the EU be defused.
"We need to build a strategic partnership with the United Kingdom, but the priority is to rebuild the EU."
"We need to take new initiatives, make new alliances. France has a new European ambition. "
Mr. Macron, who was elected last year, continued to signal his desire to push for greater cooperation in the EU Defense and Security
In a barely concealed excavation on US He said to President Donald Trump, "Europe can not rely solely on the security of the United States.
"It is up to us to live up to our responsibility and to ensure our security and, with it, European sovereignty."
"I want us to begin a comprehensive review of our security with all European partners, including Russia.
"The isolationism experienced by the United States is not new, it had begun with some elements of the previous government.
" We should see this as a symptom of the crisis of multilateralism. "
Mr Macrons Remarks came when Theresa May prepared to fly to Africa to trade after Brexit deals with emerging economies.
The Prime Minister visits South Africa, Nigeria and Kenya as she makes her first trip to the continent, since she became prime minister in 201
Ms. May said her goal is to "deepen and strengthen" partnerships around the world as the UK prepares to leave the EU. [ItwillreturnintheUnitedKingdomafewdaysbeforetheendofthesummerbreakandholdalowerhouseshowdownonBrexit