But ahead of the summit's official start Mr Trump signed a trade deal with the Mexican and Canadian leaders.
White House press secretary Sarah Huckabee Sanders confirmed Saturday that the two spoke at a cultural dinner for leaders and their wives and husbands at the famed Teatro Colón in Buenos Aires Friday night.
Trudeau says he raised his concerns during the G20 Summit about Russia's actions that resulted in the seizure of three Ukrainian naval vessels near Crimea.
Russian Federation is building up its land forces and weapons along the border, Ukraine's president said Saturday as German Chancellor Angela Merkel warned Russian Federation not to block Ukrainian ports in the Sea of Azov. She added this is enshrined in a 2003 treaty and Russian Federation must stick to that.
READY TO PUBLISH - George HW Bush, a life in photos
Following his presidency, the Bushes relocated to Houston , Texas, where they settled down and became active in the community . Iraq, led by Saddam Hussein, invaded Kuwait after accusing it of stealing oil and conspiring to influence oil prices.
India slams Pakistan for showing ‘little sincerity’
Six hostages - including a rabbi and his pregnant wife - were killed at Nariman House, a Jewish cultural and religious centre. Nine of the attackers were killed by police, while lone survivor Ajmal Kasab was captured and hanged after a trial in India.
General Motors to slash 14,000 jobs in North America
The Chevy Volt plug-in hybrid will also be cut along with the Chevy Cruze compact, which will be made in Mexico for other markets. The reduction includes about 8,000 white-collar employees, or 15 percent of GM's North American white-collar workforce.
Poroshenko told France 24 in an interview that Ukraine would try to resolve the standoff diplomatically but insisted Russian forces withdraw from Crimea and return its ships and sailors "captured illegally in the neutral waters of the Black Sea".
Kiev's pleas for help had also apparently fallen on deaf ears as North Atlantic Treaty Organisation provided a tight-lipped response, with the spokeswoman Oana Lungescu saying the bloc already has a sizeable naval presence in the Black Sea.
The November 25 incident was the first direct military confrontation between the two countries since Russian Federation annexed Crimea in 2014. Thus, according to the Ukrainian side, Russian Federation has once again demonstrated its aggressive nature and complete disregard for the norms of global law.
"In the waters of the Black Sea, Sea of Azov, and Aegean Sea, more than 80 ships and 8 submarines are on patrol - including 23 combat vessels and 6 submarines", he declared.
Border guards' spokesman Andrei Demchenko has told Ukrainian television Saturday that "the vast majority of (them) couldn't confirm the goal of their trip to Ukraine".