Angelina Jolie's political ambitions were a huge factor in her and Brad Pitt's divorce, according to new claims.

TMZ reports that the Changeling star 'dreamed of becoming the top UN official' and made this her main focus - even going so far as hiring professional help.

The actress was claimed to have two political advisers on hand towards the end of the marriage to help her achieve this goal, as well as installing a ''war room' to help with decisions and image.'

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Bad to worse: TMZ reports that it was Angelina Jolie's charity work that drove her and Brad Pitt apart, with the issue of taking their kids to war-torn countries a 'bone of contention'

Alongside Angelina's dedication to her political future, the pair are said to have clashed over the six children and their constant travelling for her charitable causes.

The source claimed that Brad was unhappy Angelina had taken the kids to war-torn countries at such young ages, despite being supportive of her work.

The insider told the site: 'Brad was always supportive of Jolie's solo charity work, but travels with the kids became a bone of contention for several years.'

Doing her bit: Angelina ensured they were accompanied top security on the trips but it is claimed Brad remained dubious of their safety

The troubled couple reportedly came to blows when Angelina, who visited a refugee camp in Jordan only two weeks ago, expressed her desire to take their clan to Syria to help rebuild the country.

While Angelina ensured they were accompanied by the top security, it is claimed Brad always remained dubious of their family's safety in the suffering areas.

The Maleficent star is known for her philanthropic work, having held the rank of Special Envoy to the UNHCR (United Nations High Commissioner for Refugees) since 2012, and creating the Maddox Jolie-Pitt Foundation to build Asia's first Millenium Village.

Charitable: The Maleficent star is known for her philanthropic work, having held the rank of Special Envoy to the UNHCR (United Nations High Commissioner for Refugees) since 2012

The new claims come after Angelina reportedly turned to pal Johnny Depp for support following the split.

The actress has been discussing her broken marriage with the troubled Pirates Of The Caribbean star and even hired his divorce lawyer Laura Wasser to represent her based on Johnny's recommendation, according to The Sun.

A source told the publication: 'Angelina idolised Johnny for years before she worked with him on The Tourist, and then the pair of them really hit it off on set.'

Helping her through? Angelina Jolie, 42, has turned to pal Johnny Depp, 53, for support following her split from Brad Pitt, 52, according to reports

There is no suggestion Angelina and Brad's split is anything to do with Johnny, who recently underwent a public divorce from Amber Heard.

The insider continued: 'The two of them have stayed in touch ever since then, and spoke regularly during the storm that surrounded Johnny’s break up with Amber.

'They have been speaking about the situation, and Angelina hired Johnny’s lawyer to represent her based on the advice that he has given her.'

MailOnline has contacted representatives for Angelina and Johnny and is awaiting comment.

Trusting: Angelina even allegedly hired Johnny's divorce lawyer Laura Wasser to represent her based on Johnny's recommendation

Johnny married Heard, his Rum Diary co-star, in February 2015 following his split from longtime love Vanessa Paradis, with whom he has two children Lily-Rose and Jack.

Heard filed for divorce in May, appearing in court in Los Angeles with a bruised face to seek a temporary restraining order against the Hollywood star whom she accused of abuse.

The former spouses reached a settlement on August 16 in which the restraining order was dismissed and Heard received $7 million, which she then donated to charity.

Big fan: Angelina reportedly 'idolised' Johnny for years before she worked with him on The Tourist

Meanwhile, Brad is allegedly so distraught over Angelina's refusal to allow him access to their children that he is hoping her father, movie legend Jon Voight, will intervene as a mediator.

'Brad has made an effort to make contact and is keen to try and improve the situation between them,' a source close to the situation told the UK's Daily Mirror.

'He's hoping his good relationship with Angelina's family will help to build bridges. He's spoken to her dad Jon and hopes he may be able to play peacemaker.'

'It's a very tricky time for the family but Brad hasn't given up hope yet.'

Jolie shocked the world earlier this week when she filed for divorce from Pitt, putting in motion the dissolution of what was Hollywood's ultimate glamorous power couple.

The Tomb Raider star was reportedly convinced that her husband was having an affair with French actress Marion Cotillard.

Asking for help: Brad (centre) has reportedly reached out to his father-in-law, actor Jon Voight (left), in the hopes that he could influence Angelina (right)

Jolie (right) filed for divorce from Pitt on Monday after a 12-year relationship. The couple has six children

Pitt and Cotillard co-star in the movie Allied, a flick about the French partisans who fought the Nazis during World War II.

In an effort to assuage his wife's fears, Pitt offered to take a polygraph to prove that he had remained faithful to her, according to the UK Daily Star.

'Angie hated all the female attention Brad would get,' a source close to the couple told the publication.

'She is very jealous and insecure, despite being one of the most beautiful women in the world.'

'They had a number of arguments about his closeness to Marion,' the source said.

'Brad did all he could to reassure her there was nothing going on and even offered to take a polygraph test to prove he was telling the truth.'

'Sadly for him she refused.'

Cotillard, 40, issued a statement on her Instagram account denying that she slept with Pitt. She also announced that she was expecting her second child with her partner, French writer and actor Guillaume Canet.

Meanwhile, it's been almost a week since Pitt has seen his kids.

Jolie was reportedly jealous over Pitt's (right) relationship with Marion Cotillard (left), his co-star in the movie Allied. Pitt was willing to take a polygraph to prove he was not cheating

Cotillard, 40, posted a message on her Instagram account denying that she and Pitt had an affair

The 52-year-old has been apart from his six children since wife Angelina Jolie filed for divorce on Monday, Us Weekly reported.

The actor, who is under investigation by the FBI following reports of alleged child abuse, is keen to see them as soon as possible.

'He knows the severity of the allegations and wants to be cleared of abuse before he sees them,' the source claimed.

'He is confident he will be cleared. The kids are asking to see Brad, so he is hoping to see them next week.'

A second source added: 'He's so torn up and shattered, not only because of the divorce but because he hasn't seen the kids and he really wants to. Being apart from them is part of why he's so torn up.'

Among the many circulating theories on the cause of the bombshell break-up this week is that Brad got drunk on a private jet with his family en route to LA five days earlier, and was seen fighting with his eldest son Maddox during a refueling stop at Minnesota.

While the actress listed September 15 as the date she and her husband of two years separated, she had already organized a $95,000 a month home for her and her six children to live in.

A source confirms to the DailyMail.com that the 41-year-old actress rented the ocean front home three weeks before the Oscar-nominated star filed for divorce in a Los Angeles' court on September 19.

Angelina filed for divorce from Brad on Monday for 'the health of her family', two years after the couple wed at their French estate Chateau Miraval.