Why did the russian burn the feilds and slaughter live stock while fighting the french?

no every country is held to the same degree as others just some member countries such as the usa and germany are more economically sound so the need to show there support to all others  

roosevelt believed that in light of the country's recent military successes, it was unnecessary to use force to achieve foreign policy goals, so long as the military could threaten force. this belief, and his strategy of “speaking softly and carrying a big stick,” shaped much of roosevelt's foreign policy.