While some reports claimed that North Korea deliberately set the test to fail, other analysts said it could be a sign that the US cyber warfare against North Korea is working effectively. Defying campaign pledges, for instance, Trump has declined to label China a currency manipulator and, perhaps in turn, China has turned up the heat on North Korea.
U.S. Vice President Mike Pence waves with his wife Karen Pence and his two daughters Charlotte and Audrey, right, before they leave for Japan, at Osan Air Base in Pyeongtaek, South Korea, Tuesday, April 18, 2017.
Japan and the US have outlined a path forward for economic talks between the countries.
After meeting with Abe, Pence held talks with Japanese Deputy Prime Minister Taro Aso on a new U.S. -Japan "economic dialogue" to be led by the two.
The vice president met Japanese officials, including Prime Minister Shinzo Abe, and reassured them of the USA commitment in the face of possible threats posed by North Korea.
This undated picture released from North Korea's official Korean Central News Agency (KCNA) on 9 May 2015 shows North Korean leader Kim Jong-Un smiling while observing an underwater test-fire of a submarine-launched ballistic missile at an undisclosed location at sea.
Pavel said America's enemies knew that Obama "had the capability, but not the will" to retaliate against aggressive actions, so they did whatever they felt like without fear of repercussion from the United States - the only superpower in the world.
Pence said Trump sees the talks as a way to improve business ties with Japan and is hoping for quick results.
Tensions between Washington and Pyongyang have seen a recent upsurge, with US Vice President Mike Pence describing North Korea as "the most unsafe and urgent threat to peace and security" in the Asia-Pacific.
The vice president also said the USA would promote peaceful dialogue and defend human rights, "because the dignity and worth of every person is an eternal value of the United States".
He also said, "We are with you 100 percent", adding that the USA always seeks peace.
Mattis denounced North Korea's attempted missile launch as he began a Middle East tour, telling reporters traveling with him to Saudi Arabia, "the leader of North Korea again recklessly tried to provoke something by launching a missile", he said.
Japanese Prime Minister Shinzo Abe on Monday told a parliamentary session that diplomatic efforts were "important to maintain peace", but "dialogue for the sake of having dialogue is meaningless".
The focus of his trip is expected to shift in Japan to trade.
But the Trump administration has made it clear this policy is now over, and has not ruled out military action.