So sorry to hear this. As someone who went through a marital breakdown many years ago, I can only feel your pain, which it will take time, prayer and probably a great deal of support to cope with.
I can only pray that your parting is on good terms, for the sake of your children, and that your spouse maintains contact with them - I was deprived of any contact and that was especially painful. Only to rebuild relationships, when they were old enough to make contact with me.

Prayers for you as you struggle day to day.

Prayers for your children, who will be deeply affected by this situation.

Prayers for your parents, who will have a totally unexpected situation to cope with.

Prayers for your spouse, who will need to explain to your children, why they''re going through the pain and to his superiors on the situation.

Prayers for hope and encouragement for you all for a brighter future, wherever it takes you.