Watch: Trump announces deployment of National Guard in Washington DC

Here is a 193-word summary of the news article: President Trump has announced the deployment of the National Guard in Washington, D.C. to address street crime and unrest. The move comes as part of the President's efforts to crack down on crime and violence in the nation's capital. The US military is preparing to activate troops as part of this deployment. Details on the specific size and scope of the National Guard presence are still emerging. The announcement follows recent protests and clashes between law enforcement and demonstrators in the city. President Trump has faced criticism for his response to these events, with some accusing him of using heavy-handed tactics to quell dissent. The decision to deploy the National Guard is likely to further inflame tensions and raise concerns about the militarization of the country's domestic affairs. It remains to be seen how this move will impact the security situation in Washington and the broader national discourse around policing and civil unrest.