Just because a person does not necessarily live in the United Kingdom their whole life, this does not mean that they are not entitled to issue divorce proceedings here.
On the divorce petition, your divorce solicitors Preston, MG Legal, will be able to advise you why the Court has jurisdiction to deal with your proceedings. In Section 5 of any divorce, dissolution or judicial separation petition, the Court needs to know why you think they have the jurisdiction (basically, the legal geographical power) to deal with your case. Usually, in the case of two British Citizens who have lived in the UK since birth, the reasons are straight forward; both are usually habitual residents and domiciled in the England. However, for some couples, the issue of jurisdiction is not always as straight forward.