Trump in January responded to North Korean claims that it was ready to test-fire an intercontinental ballistic missile by Tweeting: "North Korea just stated that it is in the final stages of developing a nuclear weapon capable of reaching parts of the U.S. It won't happen!"
As yet there has been no comment from North Korea about the missile test.
For most of the day Saturday, Trump and the Japanese prime minister played golf under the Florida sun to get to know one another and show the world the U.S. -Japan alliance remained strong.
"The bond between our two nations and the friendship between our two peoples runs very, very deep", he said.
Trump said Friday he's committed to bringing ties "even closer".
Most budget cars sold by Toyota and Honda are "produced in U.S. factories by American workers", he said, noting that USA investments by Japanese companies total $411 billion, generating 840,000 jobs.
Culminating a two-day diplomatic blitz, President Donald Trump has assuaged Japanese concerns by reaffirming the US' commitment to its alliance with Tokyo.
In conversations involving both President Barack Obama and Trump and his transition team over the last several months, media reports characterized the outgoing administration as voicing a sense of urgency on North Korea, labeling it the top national security threat facing the U.S.
A new trade relationship between two of the world's largest economies will set a precedent for other countries and the new USA leadership.
Judges sceptical about Trump travel ban
Elsewhere in the nation, a number of other lawsuits have been filed against the order by other states and advocacy groups. Purcell replied that Congress and the previous administration already addressed those concerns by removing visa waivers.
CNN also reported that Melania gifted Abe a porcelain rose known as the "Rose in Bloom" from artist Vladimir Kanevsky. US Vice President Mike Pence will make an early stop in Tokyo. Mr Trump's officials said the president was paying for Mr Abe's visit at his own expense.
Japan, with high level of technical capability will be able to contribute to Trump's growth strategy, he said.
Domestic automakers and their supporters in Congress have urged Trump to address currency devaluation and other hurdles they say the Japanese use to keep their market largely closed from outside competition.
Abe said that the test was "absolutely intolerable".
The Japanese Prime Minister told reporters that he expects "major scale infrastructure" efforts under Trump, as well as productive trade agreements between their two governments.
This weekend, Abe and his wife will be a guest of the President and First Lady at his Mar-a-Lago Club in Palm Beach, where a round of golf is on the agenda.
Trump and Abe are set to meet again for dinner Saturday evening, along with some members of the Japanese delegation.