John Bolton is set to replace HR McMaster as Donald Trumpinfo-icon's national security adviser in a Lazarus-like resurrection for a man regarded as among the most hawkish of American politicians. 

The USinfo-icon president announced the move on Thursday afternoon.

Bolton will become Trump's third national security advisor in less than 15 months. Last year, Michael Flynn was forced to step down because of his failure to disclose that he discussed sanctions with the Russian ambassador in Washington before Trump took office.

Bolton is a Bush-era defence under-secretary and former ambassador to the UN, and one of the signatories to the influential, pre-9/11 neo-conservative "Project for a New American Century", which openly called for the unilateral removal of Saddam Hussein.

Described by critics as abrasive, confrontational and, in one case, "unhinged", Bolton was accused of manipulating US intelligence on weaponsinfo-icon of mass destruction before the Iraqinfo-icon warinfo-icon and of abusive treatment of his subordinates.

He joins the president's new-look top team - Mike Pompeo, the former CIA chief, is Trump's new secretary of state. Gina Haspel becomes the CIA's new spymaster.

John Bolton

On the UN, 1994: "There is no United Nationsinfo-icon. There is an international community that occasionally can be led by the only real power left in the worldinfo-icon, and that's the United Statesinfo-icon, when it suits our interests and when we can get others to go along."

On UN bureaucracy, 1994 (scroll to 16.00 in video below): "The secretariat building in New York has 38 storeys. If you lost 10 storeys today, it wouldn't make a bit of difference. The UN is one of the most inefficient... organisations going, Unesco is even worse and things go downhill from there."

The Iraninfo-icon nuclear deal, in my opinion, was the worst act of appeasement in American historyinfo-icon

On UN reform, 2000: "If I were redoing the Security Council today, I'd have one permanent member because that's the real reflection of the distribution of power in the world... the United States." (Bolton later claimed he had been quoted out of context)

On Iraq and weapons of mass destruction, 2002: "We are confident that Saddam Hussein has hidden weapons of mass destruction."

On Bush's 'axis of evil' of Iran, Iraq and North Koreainfo-icon, 2002: There is "a hard connection between these regimes - an 'axis' along which flow dangerous weapons and dangerous technologyinfo-icon."

On Iran in 2009, before the signing of the international nuclear deal: "Ultimately, the only thing that will stop Iran from getting nuclear weapons is regime change in Tehraninfo-icon."

Advocating US-Israelinfo-icon bombing of Iran, 2015: "Time is terribly short, but a strike can still succeed. Such action should be combined with vigorous American support for Iran's opposition, aimed at regime change in Tehran."

On claims Barack Obama is a Musliminfo-icon, 2016: "King Abdullah of Jordaninfo-icon, who is not simply the Muslim king of a Muslim country - unlike our president." 

On the attempted coup against Turkeyinfo-icon's president, Recep Tayyip Erdogan, 2016: "Erdogan... wants an Islamic stateinfo-icon. The failed military coup was most likely the last gasp of the secular generals. Whether he goes on to declare a Turkish caliphate or not, I don't know, but he has laid the ground."

On the Iranian nuclear deal, 2016: "The Iran nuclear deal, in my opinion, was the worst act of appeasement in American history."

On Israel, 2017: "The Middle Eastinfo-icon peace process has long needed clarity and an injection of reality, and Trump has provided it by making the decision to move the US embassy in Israel to Jerusaleminfo-icon."

On Russiainfo-icon, 2018: "There needs to be a strategic response to Russia's new nuclear missiles to show our allies in Europe that we will not let Russia push the US or its allies around."

Bolton has also appeared in an unsual Russian video in which he talks about loosening gun laws for Russians, NPR reported on Thursday.

In 2013, he recorded a video for the Russian group Right to Bear Arms, which was founded politician Alexander Torshin. Torshin is under invesigation by Robert Mueller for possibly  funnelling money into the NRA to help Trump during the 2016 US presidential election.

"Thank you for this opportunity to address the Russian people on the 20th anniversary of the adoption of the Russian Constitution," Bolton said.

"Were the Russian national government to grant a broader right to bear arms to its people, it would be creating a partnership with its citizens that would better allow for the protection of mothers, children and families without in any way compromising the integrity of the Russian state," he added in the video.

Others on John Bolton

"I think I would rest easy if he was dog catcher in Stone Mountain, Georgiainfo-icon. But maybe not."

- Carl Ford, former head of the State Department's intelligence bureau.

"It concerns me that Trump would put someone in charge who is unhinged as far as believing in absolute and total intervention."