Secretary of State Marco Rubio delivered an unsettling speech to European leaders at the Munich security conference Monday, receiving a standing ovation that left an analyst stunned. In an opinion piece for The Guardian published Tuesday, Mehdi Hasan, editor-in-chief and CEO of Zeteo, described the "disturbing" 3,000-word address from the Trump administration's top diplomat. Hasan questioned Rubio's "love letter to conquest and colonialism" and called out his "gaslighting" as the son of Cuban immigrants who once called President Donald Trump a "con artist" and "lunatic." He's now telling European leaders they should support America's president. "Did they not realize that they may have been clapping for their own demise? That despite Rubio’s gentler tone and polished language, despite all his talk of transatlantic comity and unity, he was advocating for a geopolitics of vicious authoritarianism. That Rubio may be good cop to Trump’s bad, but their goal is one and the same: to make empire great again," Hasan wrote. Hasan pointed out that it wasn't just what Rubio said — it's what he didn't say. Rubio did not mention Russia or China once in his comments, and despite the concerns of European leaders, he also never spoke of Greenland. And after reports that Trump is still considering acquiring Greenland, Rubio reiterated that Trump hasn't let go of the idea of using military force to take the Denmark territory. "Astonishingly, Trump has refused to rule out the use of military force against Denmark, a Nato ally," Hasan wrote. "He has dismissed concerns about international borders and national sovereignty. And, this weekend, he sent his secretary of state to a conference in Europe that was supposed to be about collective security to deliver a speech that amounted to: America must dominate. Trump must lead. And Europe must get onboard – or else."Instead of praising Rubio, European governments should be wary, Hasan argued. "Again, I cannot emphasize this enough: European officials actually stood up in Munich and applauded a US official praising empire, while serving a US administration whose stated foreign policy goals include the imperial seizure of European territory," Hasan wrote. "Have they lost their minds? The Europeans in that audience may have told themselves that they were applauding a return to stability and even friendship with the United States," Hasan added. "In reality, they were offering a standing ovation for the return of something much uglier, bloodier, and more dangerous. Empire. And this time, it may not stop at Europe’s own borders."