"Trumpian rhetoric to "totally destroy" North Korea is not helpful at a time when, alarmingly, the likelihood of all-out war on the Korean Peninsula has moved from remotely possible to nearly palpable", William Choong and Alexander Neill, senior fellows at the International Institute for Strategic Studies, wrote in a report.
Kremlin spokesman Dmitry Peskov had earlier acknowledged there was now no co-operation between Russian Federation and USA on North Korea.
"Somehow or another it requires cooperation", Peskov said. Russian President Vladimir Putin and his United States counterpart Donald Trump may meet at an Asian economic summit in Vietnam next week. "Only periodic exchanges of views", he said.
Abe told reporters after the golf session that the two could talk frankly in a relaxed atmosphere while out on the course.
The pair will meet at an Asian economic summit in Vietnam next week and there is a "great possibility" they will tackle the issue.
It comes as Trump sets off on a whirlwind tour of Asia to discuss North Korea's nukes with diferent leaders.
"Japan is a treasured partner and crucial ally of the United States and today we thank them for welcoming us and for decades of wonderful friendship between our two nations", Trump told American and Japanese service members at Yokota Air Base on the outskirts of Tokyo.
Stop terrifying over Aadhaar linkage: SC to banks, telcos
It must be noted that the Supreme Court is yet to hear a petition regarding the linking of the Aadhaar card number with mobile numbers.
Donald Trump, right, Japanese Prime Minister Shinzo Abe, left, and Japanese golfer Hideki Matsuyama, centre in blue, play golf at the Kasumigaseki Country Club.
He urged Trump to pursue a peaceful solution by supporting those within North Korea to oppose Kim Jong Un. "We like each other and our countries like each other", Trump said Sunday night before dinner with Abe, who for this meal did show Trump traditional cuisine with a teppanyaki dinner. They can help us with Syria.
He said: "We will never yield, never waver and never falter in defence of our freedom".
Thousands of South Koreans called for peace in a protest against an upcoming visit by US President Donald Trump as he begins a two-week Asia tour amid heightened tensions over North Korea's nuclear and missile tests.
Trump's trip is to be dominated by trade and how to muster more global pressure on North Korea to give up nuclear weapons.
Mr Trump has delivered harsh denunciations of the renegade North Korean leader Kim Jong Un, belittling him as "Little Rocket Man" and threatening to rain "fire and fury" on his country if the belligerence continues.
He said: "We want to get it solved. They're great people. And I hope it all works out for everybody", he said.