REUTERS/ AFP GETTY Hillary Clinton warned a Syria no-fly zone would result in killing lots of Syrians in a leaked Wikil

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The US former Secretary of State made the admission in a Wall Street speech in 2013. In the latest dump of classified emails, Mrs Clinton noted the problems with imposing a no-fly zone over Syria. She said: "To have a no-fly zone you have to take out all of the air defenses, many of which are located in populated areas.

To have a no-fly zone you have to take out all of the air defenses...you’re going to kill a lot of Syrians Hillary Clinton

"So our missiles, even if they are standoff missiles so we’re not putting our pilots at risk— you’re going to kill a lot of Syrians." The presidential hopeful admitted that kind of intervention could amount to a fully-fledged “American and NATO involvement where you take a lot of civilians.” Wikileaks founder Julian Assange posted hundreds of e-mails on its website purportedly hacked from Mrs Clinton's campaign chairman, John Podesta's private account.

The exchanges include sections of her paid speeches for Goldman Saches, Deutsche Bank and Morgan Stanley and others on Wall Street in between her job as secretary of state and the current presidential campaign. During a speech to Deutsche Bank in 2013, Mrs Clinton was asked if she would support a US airstrike or sending troops to Syria. She was also asked if there is indisputable evidence that the Syrian government used chemical weapons on its people.

EPA Wikileaks founder Julian Assange posted hundreds of e-mails related to Mrs Clinton this week

REUTERS The leak relates to comments Mrs Clinton made in 2013

Mrs Clinton said: "Well, you've asked a very, very difficult question because we obviously talked about this at great length, and both the United States and Europe, as well as Israel, have said that's a red line. And if there is indisputable evidence, then there is the stated commitment to take action. “What that action is and what would work is extremely difficult to plan and execute." The data dump comes days after Mr Assange announced he would publish new documents on the US election that many think could be devastating for Mrs Clinton's presidential bid.

AFP GETTY The leak comes as Mrs Clinton prepares to take on rival Donald Trump in a presidential debate

He claims to have 10million documents that will be published in response to “enormous expectation in the United States”. The Clinton campaign said it would not confirm the accuracy of the documents released by WikiLeaks.

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