As the country prepares for a peaceful exchange of power from current President Barack Obama to President Elect Donald Trump on Friday, Washington D.C. is preparing for exactly the opposite.

As many as 900,000 people are expected to flood the city, some in support of the incoming president and many with the intention of protesting the man who did not secure a victory in the popular vote, but successfully amassed enough votes in the electoral college to win the highest office in the land.

A number of protests and liberal organizations have secured permits to conduct demonstrations, others are expected to be less organized.  Many are also traveling to America’s capital city to demonstrate on behalf of the man they voted for, intent on preventing protestors from violating the sanctity of the swearing-in ceremony.  Law enforcement in the city is prepared to conduct mass arrests in order to keep the peace between the two groups, but hope not to have to.

“The concern is some of these groups are pro-Trump, some of them are con-Trump, and they may not play well together in the same space,” Outgoing U.S. Department of Homeland Security Secretary Jeh Johnson said.

About twenty-eight thousand security personnel will be located throughout the city in order to keep the peace, bolstered by miles of fencing, road blocks, and barricades.  Even dump trucks full of sand are being moved into place to help cordon off approximately three square miles of Washington D.C.

Among the largest anticipated protest groups will be the “Women’s March on Washington” which is believed to draw in as many as 250,000 supporters who intend to voice their concerns regarding the incoming president’s comments and behavior toward women in the past.  Other protests are expected to include celebrities such as liberal film maker Michael Moore and SNL Trump impersonator Alec Baldwin.

One protest group has announced plans to distribute 4,200 joints at the inauguration, urging attendees to smoke them to protest Trump’s pick for Attorney General, Jeff Sessions, who has spoken out frequently in opposition of legalizing marijuana.