Ahead of the final presidential debate on Monday evening, Barack Obama has unveiled his secret weapon - Boris Johnson.

In a campaign video titled 'Mitt Romney's Easy Five-Step Approach to Foreign Policy', the Obama campaign references the Republican's "Romneyshambles" visit to London in July.

Step three of Romney's approach to foreign policy is said to be "undermine long-standing relationships with your allies". The video shows Boris mocking Romney to loud applause in London's Hyde Park along with the negative coverage he received in the British press.

The other steps the advert says Romney takes are; "get the facts wrong", "frequently highlight your lack of experience", "assemble a team of ideologues committed to endless war" and "mistake your enemies".

Oh and of course, it is also makes fun of Romney for speaking French. Because apparently that is a bad thing.

Obama will clash with Romney this evening as the pair go head-to-head in the third and final presidential debate that will focus exclusively on foreign policy.

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  • MItt Romney, Barack Obama

    President Barack Obama and Republican presidential candidate and former Massachusetts Gov. Mitt Romney participate in the second presidential debate at Hofstra University in Hempstead, N.Y., Tuesday, Oct. 16, 2012. (AP Photo/Charles Dharapak)

  • MItt Romney, Barack Obama

    President Barack Obama speaks as Republican presidential candidate and former Massachusetts Gov. Mitt Romney listens during the second presidential debate at Hofstra University in Hempstead, N.Y., Tuesday, Oct. 16, 2012. (AP Photo/Charles Dharapak)

  • MItt Romney, Barack Obama

    President Barack Obama and Republican presidential candidate and former Massachusetts Gov. Mitt Romney participate in the second presidential debate at Hofstra University in Hempstead, N.Y., Tuesday, Oct. 16, 2012. (AP Photo/Charles Dharapak)

  • Republican presidential nominee Mitt Romney, left, heads back to his seat after speaking during the second presidential debate with President Barack Obama at Hofstra University, Tuesday, Oct. 16, 2012, in Hempstead, N.Y. (AP Photo/Pool-Win McNamee)

  • Republican presidential nominee Mitt Romney and President Barack Obama speak during the second presidential debate at Hofstra University, Tuesday, Oct. 16, 2012, in Hempstead, N.Y. (AP Photo/David Goldman)

  • MItt Romney, Barack Obama

    President Barack Obama and Republican presidential candidate and former Massachusetts Gov. Mitt Romney participate in the second presidential debate at Hofstra University in Hempstead, N.Y., Tuesday, Oct. 16, 2012. (AP Photo/Charles Dharapak)

  • Mitt Romney, Barack Obama

    President Barack Obama answers a question as Republican presidential nominee Mitt Romney listens during the second presidential debate at Hofstra University, Tuesday, Oct. 16, 2012, in Hempstead, N.Y. (AP Photo/Charlie Neibergall)

  • President Barack Obama, left, and Republican presidential nominee Mitt Romney address members of the audience during the second presidential debate at Hofstra University, Tuesday, Oct. 16, 2012, in Hempstead, N.Y. (AP Photo/Pool-Michael Reynolds)

  • In a photo combo, President Barack Obama, left, and Republican presidential nominee Mitt Romney address the audience during the second presidential debate at Hofstra University, Tuesday, Oct. 16, 2012, in Hempstead, N.Y. (AP Photo/Pool-Shannon Stapleton)

  • MItt Romney, Barack Obama

    President Barack Obama and Republican presidential candidate and former Massachusetts Gov. Mitt Romney participate in the second presidential debate at Hofstra University in Hempstead, N.Y., Tuesday, Oct. 16, 2012. (AP Photo/Charles Dharapak)

  • Barack Obama, Mitt Romney

    President Barack Obama sits left as Republican presidential candidate, former Massachusetts Gov. Mitt Romney, speaks during the presidential debate, Tuesday, Oct. 16, 2012, at Hofstra University in Hempstead, N.Y. (AP Photo/Carolyn Kaster)

  • Barack Obama, Mitt Romney

    President Barack Obama, right, and Republican presidential candidate, former Massachusetts Gov. Mitt Romney, participate in the presidential debate, Tuesday, Oct. 16, 2012, at Hofstra University in Hempstead, N.Y. (AP Photo/Carolyn Kaster)

  • Barack Obama

    President Barack Obama speaks during the second presidential debate, Tuesday, Oct. 16, 2012, at Hofstra University in Hempstead, N.Y. (AP Photo/Carolyn Kaster)

  • MItt Romney, Barack Obama

    President Barack Obama and Republican presidential candidate and former Massachusetts Gov. Mitt Romney participate in the second presidential debate at Hofstra University in Hempstead, N.Y., Tuesday, Oct. 16, 2012. (AP Photo/Charles Dharapak)

  • Barack Obama, Mitt Romney

    President Barack Obama speaks as Republican presidential candidate, former Massachusetts Gov. Mitt Romney, listens during the second presidential debate Tuesday, Oct. 16, 2012, at Hofstra University in Hempstead, N.Y. (AP Photo/Carolyn Kaster)

  • President Barack Obama and Republican presidential nominee Mitt Romney exchange views during the second presidential debate at Hofstra University, Tuesday, Oct. 16, 2012, in Hempstead, N.Y. (AP Photo/Eric Gay)

  • MItt Romney, Barack Obama

    President Barack Obama and Republican presidential candidate and former Massachusetts Gov. Mitt Romney participate in the second presidential debate at Hofstra University in Hempstead, N.Y., Tuesday, Oct. 16, 2012. (AP Photo/Charles Dharapak)

  • President Barack Obama, left, shakes hands with Republican presidential nominee Mitt Romney at the end of the second presidential debate at Hofstra University, Tuesday, Oct. 16, 2012, in Hempstead, N.Y. (AP Photo/Pool-Michael Reynolds)

  • Barack Obama

    President Barack Obama smiles after the second presidential debate at Hofstra University, Tuesday, Oct. 16, 2012, in Hempstead, N.Y. (AP Photo/Charlie Neibergall)

  • President Barack Obama is hugged by his wife Michelle following the second presidential debate with Republican presidential nominee Mitt Romney at Hofstra University, Tuesday, Oct. 16, 2012, in Hempstead, N.Y. (AP Photo/Pool-Shannon Stapleton)

  • Barack Obama, Mitt Romney

    President Barack Obama and Republican presidential candidate, former Massachusetts Gov. Mitt Romney, shake hands after the second presidential debate, Tuesday, Oct. 16, 2012, at Hofstra University in Hempstead, N.Y. (AP Photo/Carolyn Kaster)

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  • Presidential Race

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  • Pennsylvania

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  • Virginia

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  • Wisconsin

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  • Obama Favorability

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  • Romney Favorability

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  • Arizona

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  • Florida

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  • Iowa

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  • Michigan

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  • Missouri

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  • Montana

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  • Nevada

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  • New Hampshire

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  • New Mexico

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  • North Carolina

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  • Ohio

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