That's the name the U.S. Department of Defense has assigned to the deployment of National Guard troops to the Mexico border, according to the agreement that will govern the Guard mission.

The deployment ground rules are laid out in what's known as a memorandum of agreement (MOA) between federal defense officials and the governors of California, Arizona, New Mexico, and Texas.

The two page document, which has not been signed by all parties and therefore not been officially released, says that any Guard troops assigned to border duty outside of their state will be jointly controlled by the governors of both states.

So for example, if California National Guard troops are needed in Texas, the language of the MOA implies that the state's troops would be under the command of Governor Schwarzenegger for "administrative purposes" while Texas Governor Rick Perry would assume "operational control" over the troops. But it remains to be seen exactly what that kind of split control would mean in practical terms.

The MOA also addresses the controversial issue of Guard troops being used as law enforcement agents. While Schwarzenegger told reporters today that kind of assignment will not happen, the MOA only says that such an assignment would require the approval of Defense Secretary Donald Rumsfeld. It should be noted that Rumsfeld's approval may still not be enough, on its own, for troops to undertake that role. But if other steps are required, they are not spelled out in the MOA.

The document, according to Guard officers who testified before a state Senate hearing on Wednesday, has been the subject of lengthy discussions and negotiations ever since President Bush's border proposal was announced two weeks ago.