North Korea regularly threatens to destroy Japan, South Korea and the United States and it showed no let-up in its defiance after a failed missile test on Sunday, a day after putting on a huge display of missiles in Pyongyang.
"The USS Carl Vinson carrier strike group, which includes Aegis-equipped destroyers, is headed for the Korean peninsula", the report noted.
Pence has reportedly said "all options are on the table" in terms of dealing with the DPRK, but that President Donald Trump was determined to work with Japan, China and South Korea to find a peaceful solution.
"Strategic patience signaled indecision and predictability - not a good combination in Trump's eyes", Cha said.
"The United States of America will always seek peace but under President Trump, the shield stands guard and the sword stands ready", he added.
"I said, 'Do you want on your resume that during your presidency the North Koreans developed a missile that could hit the American homeland with a nuclear weapon on top of it?' And he said, 'Absolutely not, '" Graham said.
Their hope is that the White House will focus on pressuring China, Pyongyang's only major ally and biggest trade partner, to redouble its efforts to rein in the regime and prompt North Korea to return to the negotiating table after it abandoned the six-party talks in 2009.
Its aim is to be able to put a nuclear warhead on an intercontinental ballistic missile that can reach targets around the world, including the US.
United States Vice President Mike Pence has said North Korea was getting the message that it needed to walk away from its "reckless" nuclear activity.
Mr Pence also insisted that the long standing USA commitment to South Korea against the North was "iron clad".
Noting Trump's recent military actions in Syria and Afghanistan, Pence said, "North Korea would do well not to test his resolve", or the USA armed forces in the region.
The U.S. has scheduled a high-level open meeting of the Security Council on North Korean nonproliferation for April 28. -South Korean installation, which is just outside the 2.5-mile wide (4 kilometers) DMZ. "But dialogue for the sake of having dialogue is meaningless".
"All options are on the table" in pushing for an end to Pyongyang's nuclear programme, Pence said, adding that the era of U.S. "strategic patience" in dealing with the regime was over.
In fact, the communist country vowed to continue testing its missiles and expressed its readiness for an "all-out-war" in the event of USA military aggression.
North Korea recently unveiled footage of a simulated nuclear strike on a USA city to celebrate a major national holiday.
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.
McMaster cited Trump's recent decision to order missile strikes in Syria after a chemical attack blamed on the Assad government, as a sign that the president "is clearly comfortable making tough decisions".
"So far, I think that what we see is that unpredictability can have the effect of at least inducing a temporary pause", Snyder said.