Trump's plan to address crime in D.C. calls for deploying National Guard troops along the National Mall overnight Wednesday into Thursday morning, according to a source.

The Army activated the D.C. National Guard under Title 32, the service said. Of the 800 Guard members activated, between 100-200 troops will be supporting law enforcement at any given time. Their duties will include an array of tasks from administrative, logistics and physical presence in support of law enforcement, the Army said.