The correct statement is " opposition to the policies of the federal government."
The antiwar movement of the 1960's and 70's was sparked by the federal governments investment in the Vietnam War. There were many different actions that citizens did not agree with, including the use of Agent Orange, the military draft, and the invasion of Cambodia. Hundreds of thousands of citizens protested across the country about these policies.
The red movement was based around Native Americans fighting to get land back that was taken by the federal government. The federal government had a long history or shady deals and forcing Native Americans to move to reservations. In this movement, Native Americans purposely broke federal laws as a means of protest, showing their opposition to this branch of government.
The main way in which the Iroquois Confederacy was like the US government was that both were made up of representatives from groups that originally considered themselves to be separate nations. The Iroquois Confederacy was made up of the Five Nations while the US government was made up of (originally) the 13 states.