The move comes after weeks of pressure from the public calling for the removal of the protesters.
The demonstrators — members of a group that calls itself the “Canadian Revolution” — have been squatting at the site since Canada Day, citing a wide-range of grievances with the federal Liberal government.
The group has demanded all politicians and government officials to step down immediately, and has peddled far-right conspiracy theories.
The memorial has acted as a base camp for the fringe group, whose members have repeatedly harassed politicians on Parliament Hill.
Last month, video posted to social media showed Jagmeet Singh being followed down the street in front of Parliament Hill by a man who asked if the NDP leader wants to be arrested.
The man later told Singh that the next time they see each other, the two will “have a dance.”
Following the incident, the Parliamentary Protective Service said it had stepped up its presence in the area.
On Thursday, ‘no camping’ signs were erected at the National War Memorial, notifying demonstrators that they may not “occupy, reside, camp or sleep in or upon” in a public space.
Ottawa police told Global News the operation on Saturday began around 6 a.m., after the force received a request from Public Services and Procurement Canada to clear the site.
According to police, three people were at the camp. One protester left, while the other two were arrested.
The move comes as the city prepares for a scaled-down Remembrance Day next month.
–With files from Global News’ Amanda Connolly and The Canadian Press