The first evidence of deforestation was observed in a period known as the Mesolithic Period. Scientists find evidence of past episodes of deforestation by examining pollen records. The primary cause of ancient deforestation is to clear land for agriculture. Deforestation is the widespread removal of trees and forested areas that can lead to serious environmental issues such as soil erosion and Flooding.
The similarity in both invasions of Russia is.
They both Failed.
Climate should be a good factor
For human cost we lose soldiers which can sisters, brothers, fathers, mothers, for economic it puts big debt because people lose jobs and lose money, and for political it can be a positive or negative output.