Thousands of protesters took part in demonstrations across the country on Dec. 21 under the banner of Idle No More, a grassroots movement dedicated to protecting the environment and Aboriginal treaty rights against new federal legislation. First Nations activists and their supporters mobilized nationwide, with the largest protest on Parliament Hill drawing more than 2,000 people. Solidarity rallies took place around the world — from New Zealand to Los Angeles to the United Kingdom. Some activists also started blocking key roads and railways. In the span of a few weeks, Idle No More has become the most significant social movement in Canada since #Occupy and the Quebec student strike.