Which battle resulted in Germarty having to fight the allies in the West and Russia in the East?

In the end, many historians believe the Battle at Stalingrad marked a major turning point in the conflict. It was the beginning of the march toward victory for the Allied forces of Russia, Britain, France and the United States.

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.  

i think the answer is the one about environmental and social health.

hope this