The unfinished business facing Prince Harry as he returns to the UK

Prince Harry is expected in the UK on Thursday, the day before the anniversary of his grandmother Queen Elizabeth's death.

However, the duke's visit has nothing to do with the anniversary. In fact, rather than any family reunion, the Royal Family, led by King Charles, is believed to be marking the anniversary with a day of quiet reflection instead of a formal occasion – in line with how the Queen commemorated the death of her own father.

Harry will instead be in London to attend the awards ceremony for the WellChild charity for seriously ill young children, which the duke has supported as a patron since 2007.

The visit will be Harry's first to the UK since May. Yahoo News runs down the threads of unfinished business in his home country that are yet to be resolved.

Harry's relationship with members of his family appears to remain tricky at best. The last time he spoke publicly about the situation, he was clear that certain issues remain unresolved.

While he returned to the UK to support his father Charles at his coronation in May, the visit was only a flying one, and he didn't play an official part in the ceremony — unlike his brother Prince William.

Read more: Everything Meghan and Harry have done since leaving the Royal Family

In January, while promoting his memoir Spare in an interview with ITV's Tom Bradby, he said "the door is always open, the ball is in their court", in regards to reconciliation with his family – however it remains uncertain if any of the gap between the Sussexes and the rest of the Windsors has been bridged.

At Charles's coronation, Harry was seen laughing and joking with many of his family members, including his aunt Princess Anne. But there has been no public show of closeness with either his father and brother.

Harry's allegations of family members leaking stories to the media in exchange for better press for themselves have been compounded during his legal claims against various British media outlets in recent months.

Read more: A-level results: The grades Kate, William, Harry and other Royal Family members achieved

In April during a preliminary hearing against News Group Newspapers — publishers of The Sun — Harry alleged that his brother made a "secret agreement" with the publishing company to privately settle allegations of phone-hacking and avoid the publicity of a court case.

This aspect of his claim was subsequently struck out by the judge presiding over the legal action, alongside allegations he made of phone-hacking. The court ruled that while emails proved "that there was a desire by the Palace to have an informal settlement of their phone-hacking complaints" Harry was "unable to identify between whom the secret agreement was made, or even who it was who told him about it".

The judge also found that Harry's allegations of phone-hacking had been brought beyond the statute of limitations.

However, other allegations made by the Duke that the publisher — which denies the claims — commissioned other forms of unlawful information gathering will be heard at a trial next January.

The extensive ongoing legal battles Harry is currently embroiled in with the British press also include claims of unlawful information gathering against Mirror Group Newspapers, which also denies any wrongdoing.

These allegations went to trial in June and saw Harry enter the witness box to give evidence, the first time a member of the Royal Family has done so in over a century.

A ruling on this case is expected in September.

Harry also currently has two claims ongoing against Associated News Limited, the publishers of the Daily Mail.

One is for unlawful information gathering, with Harry one of seven high-profile people, including Sir Elton John and Baroness Lawrence of Clarendon (the mother of Stephen Lawrence), bringing legal action against ANL.

Read more: Rapper Ice Cube weighs in on Harry and Meghan stepping back from Royal Family

The "firmly" denied allegations include the hiring of private investigators to place listening devices inside cars, the "blagging" of private records and the accessing and recording of private phone conversations.

A judgment is expected later this year about whether this claim can proceed to trial.

The second relates to a libel claim over a February 2022 Mail on Sunday article about his legal fight with the Home Office, with a ruling is expected later this year.

Harry's ongoing battle with the Home Office over his security arrangement is also yet to reach a conclusion.

In July last year, he secured a judge’s permission to pursue a judicial review against the Home Office over security arrangements for himself and his family when they are in the UK.

The duke is challenging a February 2020 decision of the Executive Committee for the Protection of Royalty and Public Figures (Ravec) – which falls under the remit of the department – after being told he would no longer be given the “same degree” of personal protective security when visiting. A date for a full hearing is yet to be set.