WATCH: "It was destroying my mental health" - Prince Harry reveals why he left Britain

Prince Harry, the Duke of Sussex, spent a day with the host of 'The Late Late Show', James Corden. 

During the interview, Prince Harry revealed why he left Britain and stepped back from royal duties. 

In 2020, Prince Harry and his wife, the Duchess of Sussex, Meghan Markle, shocked the world after they announced that they will be moving to California and stepping back from royal duties. 

"It was never walking away. It was stepping back rather than stepping down, there was a really difficult environment as I think a lot of people saw," Harry said in the interview.

READ: Meghan and Harry to sit down with Oprah Winfrey for tell-all interview

"We all know what the British press could be like, and it was destroying my mental health, I was like 'this is toxic'. So I did what any husband and what any father would do, I needed to get my family out of there," Harry continued. 

Earlier this month, Meghan successfully sued one tabloid for breaching her privacy by printing extracts of a letter she wrote to her father. 

News recently broke that the royal couple will sit down with media mogul, Oprah Winfrey, for a tell-all and intimate interview. 

According to reports: "Winfrey will speak with Meghan, the Duchess of Sussex, in a wide-ranging interview, covering everything from stepping into life as a royal, marriage, motherhood, philanthropic work to how she is handling life under intense public pressure. Later, the two are joined by Prince Harry as they speak about their move to the United States and their future hopes and dreams for their expanding family."

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Image: YouTube/ Prince Harry on 'The Late Late Show' with James Corden