A National Guard deployment reacheed 400 members in Washington as a federal operation began targeting crime and homelessness around the clock Wednesday.

National Guard troops have begun 24-hour operations around Washington, D.C., as of Thursday morning, according to a Department of Defense official. It's part of President Donald Trump's plan to address crime in Washington by taking over the city's police department and deploying the National Guard troops.

Around two dozen soldiers stood guard outside Washington, Union Station in Washington, D.C., on Aug. 14. They had little to do.

President Donald Trump said on Wednesday that he will seek more permanent federal control of the Washington, D.C., police force as he continues his efforts to ramp-up crime enforcement in the nation's capital.