Can you get a divorce even though your husband won't get it and he's incarcerated?
Simply said, YES! The mear fact that he is in jail is reason enough for the judge to grant the divorce. Have papers served to him where he is at.
If you leave your husband and bring your kids to the US and you have your greencard can you divorce him in the US even though you got married in another country?
Yes. No matter which of the two countries you were married in, you are married until one of you dies or you get a judgment of divorce signed by a judge. You can still divorce your husband, even if he lives in a foreign country. You can still divorce your husband, even if you cannot find him. You cannot legally remarry until you obtain a divorce.