Active duty troops deploying to Washington DC.
About 9 military style trucks have rolled through the White House complex and onto Pennsylvania Ave on Monday.
They\'re all filled with National Guard troops.
(CNN) -- An active duty military police battalion consisting of some 200 to 250 military personnel is now in the process of deploying to Washington, DC, and could be in the nation's capital as soon as tonight, three US defense officials tell CNN.
The troops are expected to provide security but not perform law enforcement duties such as the arrest and detention of protesters, according to the officials.
Two defense officials said the troops will be coming from a unit at Ft. Bragg in North Carolina.
And we're doing it in Washington, in DC, we're going to do something that people haven't seen before. »