The Unitarian Universalist Association has placed on their website (uua.org) the official policies for the endorsement and support of Military Chaplains and Chaplain Candidates. UUMM was a part of the drafting of the policy proposal to the UUA which has now been adopted.
Those policies can be found here.
If you are interested in persuing a call to the military chaplaincy of the Unitarian Univesalist Faith, these policies will let you know what the requirements are, how you begin the process, and what other considerations you need to be aware of as you begin this path.
UUMM would like to thank the UUA, Rev. Beth Miller, and Rev. Lisa Presley for all their work to re-draft and announce these policies... and for the faith and support of the vocation of military chaplaincy that is represented by them.
Yours in Faith,