What you are describing is more of a dispute of a family law (by that I mean for the judge to determine who has the right of the custody for children).
Now in that case what is the current status of your marriage. What steps did you do until now (in case you want to separate or divorce from your husband).
Without doing official steps first your attempt would be more likely considered a child abduction than anything else (you might not like your husband but unless you have custody decision he also has right to see his children and participate).
So try to straighten up that part first.
