Economic warfare or economic war is an economic strategy used by belligerent states with the goal of weakening the economy of other states. This is primarily achieved by the use of economic blockades. Ravaging the crops of the enemy is a classic method, used for thousands of years.
In military operations, economic warfare may reflect economic policy followed as a part of open or covert operations, cyber operations, information operations during or preceding a war. Economic warfare aims to capture or otherwise to control the supply of critical economic resources so friendly military and intelligence agencies can use them and enemy forces cannot.