GETTY Trump threatened to stop the US from buying oil from Saudi Arabia

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The brazen presidential hopeful said he would pull oil trade with the Sunni Kingdom unless the country’s government provides troops to fight the Islamic State. Outlining his foreign policy, the Republican frontrunner also said America should be reimbursed by the countries it provides protection – including Saudi Arabia.

The billionaire’s candid comments came after the New York Times asked him if he would halt oil purchases from US allies unless they provided ground-based troops against the depraved death cult – also known as Daesh. He said: "The answer is, probably yes.” “We're not being reimbursed for the kind of tremendous service that we're performing by protecting various countries. “Now Saudi Arabia's one of them."

IG The Republican frontrunner said he would stop the US from buying oil unless Saudi helps fight ISIS

If Saudi Arabia was without the cloak of American protection, I don’t think it would be around Donald Trump

The 69-year-old’s also claimed “Saudi Arabia wouldn't exist for very long” without the US, despite being one of the world’s largest oil exporters. He said: “If Saudi Arabia was without the cloak of American protection, I don’t think it would be around.” His comments came just hours after he was ridiculed by stunned Britons for his TV interview with Piers Morgan.

Donald Trump’s top tweets Mon, March 7, 2016 White House hopeful Donald Trump has sparked controversy on the campaign trail and social media. Here are his best tweets Play slideshow Getty Images 1 of 22 Donald Trump speaks during a campaign rally at the Georgia World Congress Center

Viewers reacted with shock as the presidential hopeful discussed issues ranging from Brexit to gun control on ITV on Friday. One user labelled the entrepreneur "cringe worthy" as Trump "rambled on" about the golf course he built in Scotland.

GETTY The bolshy billionaire also said Saudi Arabia wouldn't be around without American protection

The interview was branded "An hour of self promotion, weak answers & assertions" by user Jeremy Singer. The interview with Good Morning Britain presenter Piers Morgan was shown in full on ITV on Friday night.