Describe the importance of the relationship between George and Lennie?

The relationship between George and Lennie is the primary focus of Steinbeck's classic novella Of Mice and Men. Both George and Lennie are migrant workers who travel the country looking for work as manual laborers during the Great Depression. George and Lennie's relationship is unique among migrant workers, who typically travel the country alone. George plays the role of Lennie's guardian and protector, while Lennie provides George with much-needed camaraderie. The two friends also share the same dream of one day owning a homestead, where they will live off of the "fatta the lan" and raise rabbits. George tries his best to keep Lennie out of trouble and gives him important advice when they arrive on the unwelcoming, hostile ranch.
Tragically, George cannot prevent Lennie from making costly mistakes, and Lennie accidentally kills Curley's wife. Following the accidental manslaughter, George demonstrates loyalty and mercy toward Lennie by shooting him in the back of the head to prevent Curley and his lynch mob from torturing Lennie. Overall, Steinbeck explores the importance of friendship and camaraderie in the midst of a difficult environment by examining George and Lennie's unique relationship.