French President Emmanuel Macron cast himself as the antithesis of U.S. President Donald Trump at the United Nations on Tuesday, a position that could enable him to play the honest broker in international conflicts.

A few hours after Trump pugnaciously defended his unilateralist "America First" doctrine and launched scathing verbal attacks on North Korea and Iran, Macron took to the same stage to advance a diametrically opposed stance.

"Multilateralism is the most efficient way to face global challenges. It is the realization of a vision of the world that protects us," Macron said in his first address to the U.N. annual gathering of world leaders in New York.