Donald Trump will be sworn in as the 45th president of the United States Friday - capping his improbable journey to the White House and beginning a four-year term that promises to shake up Washington and the world.

In the afternoon, President Trump will review the American armed forces. Then, accompanied by Vice President Mike Pence, President Donald Trump will lead the Inaugural Parade, which will begin at the Capitol and make its way down Pennsylvania Avenue with thousands of troops on hand representing each participating branch of the military.

Beginning at 7 pm Friday night, there will be two official Inaugural Balls on two separate floors of the Walter E. Washington Convention Center. There will also be an Armed Services Ball (held at the National Building Museum). Donald Trump is expected to say a few words and take the dance floor at all three events.

On Saturday (January 21st), the Washington National Cathedral will hold the traditional prayer service for President Donald Trump and Vice President Mike Pence. This service will signal the end of the official Inauguration schedule.

Donald Trump jetted into the US capital Thursday on the eve of the most consequential moment of his life -- his inauguration as the nation's 45th president and the setting of a four-year course of American political reform, informs AFP.

President-elect Donald Trump has arrived in the Washington area ahead of his inauguration Friday. The president-elect arrived at Joint Base Andrews with his family, including his children and wife Melania Trump, shortly after noon on Thursday.

President-elect Donald Trump spent Thursday night at the presidential bed-and-breakfast known as the Blair House, following a presidential tradition that goes back to President Jimmy Carter.