The Genesis of the OU's MMUs

http://www.spawar.navy.mil/sandiego/technology/mammals/fleet.html

After the breakup of the USA, many Americans who had settled in deepsea
colonies in the Pacific emigrated to the OU. One of the oldest units in the
OUDF is the Marine Mammal Unit, which can trace its ancestry back to the USN
MMUs at the beginning of the 21st century.