The participants of the upcoming demonstration will demand new armament and equipment for all volunteer formations and a staff reshuffle in the Defense Ministry, denouncement of all treaties with Russia and the "just and immediate execution" of President Yanukovych-era "culprits".
Kiev should efficiently crack down on corruption and nationalize Russian businesses in Ukraine to stabilize the economy, the fighters said.
"If the government does not begin to fulfill these demands right now, if it does not start to adequately react to the threats to the Ukrainian statehood, it will collapse very soon."
The Right Sector is a hardline nationalist paramilitary union notorious for atrocities.
The Azov regiment is a formation within the National Guard. It uses Nazi symbols and is infamous for torturing civilians and committing war crimes.