President Donald Trump’s appointment of John Bolton as his national security adviser has “profound implications” for the direction of US foreign policy and increases the risk of military confrontations with North Korea and Iran, according to an analysis by the Foreign Policy magazine.

Trump announced Gen. H.R. McMaster�s replacement on Thursday, making Bolton, a former US ambassador to the United Nations, his third national security adviser since coming to office and continuing a shake-up that creates one of the most hawkish national security teams of any White House in recent history.

Even though McMaster “was no dove,” Bolton, “falls into an entirely different category of dangerous uber-hawk,” the FP article argues.

Bolton championed the 2003 invasion of Iraq, and to this day, he holds the conviction that “the most disastrous foreign-policy decision in a generation was a good idea,” it adds.

Shortly before the US and its allies launched the catastrophic invasion, Bolton reportedly told Israeli officials that once Saddam Hussein was removed, it would be necessary to deal with Syria, Iran and North Korea.

“He has essentially maintained this position ever since,” the FP says, adding that for Bolton, “there are few international problems where war is not the answer.”

Trump’s choice of Bolton as national security adviser dims the prospect of reaching a peaceful solution with North Korea as the standoff reaches a critical point.

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“McMaster supported diplomacy and, as a military man with extensive combat experience, understood the costs of war. Bolton, on the other hand, has spent his entire career sabotaging diplomacy with Pyongyang and seems downright giddy about a possible military confrontation,” reads the article.

As undersecretary of state for arms control and international security, Bolton played a key role in President George W. Bush’s decision to abandon diplomacy with North Korea in 2002 and scrap the 1994 Agreed Framework with Pyongyang, which had frozen the country’s plutonium program under effective verification.

North Korea had pursued a separate plutonium enrichment program, reportedly with the help of Pakistan. Arms control experts urged the Bush administration at the time to expand the Bill Clinton-era framework to prohibit plutonium enrichment. However, encouraged by Bolton, Bush decided to kill the framework. Consequently, North Korea moved to build about half a dozen additional nuclear weapons and tested its first in 2006.

More than a decade later, Bolton continues to hold on to this hawkish worldview that diplomacy does not work.

In a September 3, 2017 interview with Fox News, Bolton declared that the only option to address the North Korean nuclear standoff is “to end the regime in North Korea” and engage in a preemptive strike.

“Anybody who thinks that more diplomacy with North Korea, more sanctions, whether against North Korea or an effort to apply sanctions against China, is just giving North Korea more time to increase its nuclear arsenal,” Bolton warned.

“It would be a lesson to every would-be nuclear state in the world that if you just have patience enough, you can wear the United States down,” he argued.

Bolton invoked former President Franklin Roosevelt’s advice that “when you see a rattlesnake poised to strike, you don’t wait until it has struck before you crush it,” arguing that “today North Korean nuclear weapons and ballistic missiles, and Iran’s while we’re on the subject, are the rattlesnakes of the 21st century.”

To further lay the groundwork for a preemptive strike against North Korea, Bolton penned an op-ed in The Wall Street Journal last month titled “The Legal Case for Striking North Korea First.” In it, the former ambassador contended that the “threat is imminent” and the US should take military action before it is too late.

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Bolton’s appointment comes as Trump has accepted an offer of meeting by North Korean leader Kim Jong-un. However, “the entire endeavor is doomed” if Bolton reflects, or influences, the FP says.

Bolton has argued that the only value in having this “unproductive” summit -- which could take place in May -- is to “foreshorten the amount of time that we’re going to waste in negotiations that will never produce the result we want, which is Kim giving up his nuclear program.”

Bolton, the analysis reads, is equally likely to encourage Trump toward military confrontation with Iran.

Inspectors with the International Atomic Energy Agency (IAEA) have filed nine consecutive reports over the past two years verifying Iran’s compliance with a 2015 nuclear agreement officially known as the Joint Comprehensive Plan of Action, or JCPOA.

However, Bolton has said, “I don’t think the evidence is there that this agreement is slowing them down.” As the case with North Korea, the former ambassador has called Iran an “imminent threat,” and claimed, without offering any evidence, that Tehran is on the verge of obtaining off-the-shelf nuclear weapons from Pyongyang.

For Bolton the debate over whether Iran is living up to its commitments under the JCPOA is beside the point.

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Bolton’s appointment comes at an incredibly sensitive time for the Iran nuclear deal as well.

Trump is approaching a May 12 deadline for a decision whether to continue waiving the nuclear-related sanctions against Tehran or quit the JCPOA.  The US president delivered a 120-day ultimatum to European allies and Congress to “fix the terrible flaws of the Iran nuclear deal” the last time he did so in January.

McMaster along with Rex Tillerson -- who was fired as secretary of state this month and replaced with CIA Director Mike Pompeo, another Iran hawk – repeatedly urged Trump not to withdraw the US from the international accord.

‘US will take harder line toward Iran nuclear deal’

The recent shakeup and reshuffle in President Donald Trump’s cabinet is probably an indicator of a �hardening of lines� in regards to US foreign policy.

A State Department team has been working with their counterparts in France, Germany, and the United Kingdom to identify a compromise that would encourage Trump to remain in the agreement.

Bolton, perhaps with support from Pompeo, “is likely to tell the State Department not to bother and encourage the president to reject any arrangement with the Europeans as insufficient,” the FP analysis says.