Today's children are tomorrow's generation, the meeting of the leaders of the states was seen this time at the General Assembly Hall of the United Nations.

It can be said that it is a group of the new generation. Countries in the Americas, Europe, Asia and Africa were represented by those born between 1981 and 1996.

A view of the latest generation of leaders in power was heard at the United Nations Assembly. This category offers a new impetus to countries and the UN.

Some millennial leaders were making their debuts at the 77-year-old diplomatic institution built in the aftermath of WWII, while there were other notables who didn't show up but had already arrived on the world stage. Those include Kim Jong Un, who took over reclusive North Korea in his 20s, and the 36-year-old Finnish Prime Minister Sanna Marin, who faced controversy recently for a video of her dancing at a private party that went viral.

On Tuesday during the first day of the General Assembly, two young presidents shattered that myth of the millennial monolith when they spoke of their contrasting plights.

Rosario Diaz Garavito, the founder of The Millennials Movement, an NGO that works to engage young people in Latin America on the U.N.'s goals, said the diverging leaders both deftly disrupted the usual party politics at home and have proven to be among the most polarizing leaders in the region at a time when multilateralism should be embraced.

“We tend to go from the right wing to the left wing – all the time. And this is actually separating us,” Diaz Garavito said. "They have shown they can think differently, in different ways, but we need to now be able to find common ground as a region."

Another thing united them: Neither wore a tie, opting for more casual attire to speak from the General Assembly podium, a place where virtually all male leaders stick to suits with ties or national dress.

As the first generation of digital natives, one constant theme in the political fortunes and misfortunes of millennial leaders emerged in the praise and peril of the internet and social media.