Imperialism is getting something for nothing. It is a strategy to obtain other countries’ surplus without playing a productive role, but by creating an extractive rentier system. An imperialist power obliges other countries to pay tribute.
The United States has launched a three-pronged offensive on Russia. First, it’s attacking Russia’s economy via sanctions and oil-price manipulation. Second, it’s increasing the threats to Russia’s national security by arming and training militant proxies in Syria and Ukraine, and by encircling Russia with NATO forces and missile systems.