Habitual residence is that one of you intends to remain living in England, and are actually living in England as evidenced for example by employment and the ownership of a home.
You can divorce if you are both habitually resident in England or Wales, or just one of you is habitually resident here, and the other lives overseas.
You can also divorce in England and Wales if you are domiciled here. There are different types of domicile:
So, if you were both born in England, but are for example overseas with HM Armed Forces, your domicile of origin is England, and you may divorce in this country.