Some of the world's biggest leaders are gathered in Paris right now for a summit focusing on everything from technology to peace. One leader, however, is notably absent. Despite the summit officially getting underway this morning, Donald Trump has already left Paris.

His departure didn't come before other leaders, including Justin Trudeau, had a chance to throw major shade his way. While Trudeau didn't name any names, it is very obvious who his criticisms are directed at.

While giving a talk about the power of social media and politics, Prime Minister Trudeau said that some world leaders use Twitter to polarize their voters. He also said that the platform is used to push people into being angry.

Though Trudeau did not name any names, he did mention the United States in his comments and based on President Trump's super fiery Twitter page, the criticisms are clearly directed at him. Which makes sense after Trudeau has been the subject of many of Trump's wild Twitter rampages.

Prime Minister Trudeau is being so indignant, bringing up the relationship that the U.S. and Canada had over the many years and all sorts of other things...but he doesn’t bring up the fact that they charge us up to 300% on dairy — hurting our Farmers, killing our Agriculture! — Donald J. Trump (@realDonaldTrump) June 7, 2018

That's not the only thing Trudeau threw shade at. At another event yesterday, this one focusing on press freedom, he told the crowd that the media is key to democracy. He also said that attacks on the media completely undermine democracy and truth.

While he again didn't name names, these types of attacks he is referring to are like the ones we see constantly from Donald Trump. Trudeau said that these attacks increase cynicism and when that happens, people turn to hate and xenophobia.

Trudeau did not hold anything back with his unnamed but very pointed criticism and he's not the only one. Other leaders at the summit, including French Prime Minister Emmanuel Macron, have called out Donald Trump over his Nationalism.

Trump is very obviously focused on his "America First" agenda. That's why he was the target of a plea from the other world leaders for global cooperation. The leaders also warned that Nationalism was one of the factors that gave way to the World Wars and that it completely erases a country's values.

@justinpjtrudeauembedded via

Even while in Paris this weekend, Trump was very much alone. While other leaders took a bus together to events, Trump opted instead to drive by himself. He also skipped out right at the beginning of the forum, choosing instead to go to an American cemetery commemoration in France before returning back home.

The Paris Peace Forum was organized as an opportunity for world leaders to meet and discuss peaceful solutions to some of the world's problems. Other leaders present include German Chancellor Angela Merkel and Russian leader Vladimir Putin.

Sources: Globe And Mail / CBC / NPR