I am recently divorced to someone in the military stationed in GU. Could I sue them for giving away my belongings, although they agreed to send them?

The divorce was done with me in the states, and them still in GU. During the divorce, it was agreed that they (ex spouse), would send my belongings that was still there, back to me in the states. The ex spouse not only made communication with this difficult, they also waited until the divorce decree was final to then inform me they gave my belongings away, despite our agreement (which I have proof of). Could I sue them, even with them being stationed and still enlisted?