"To help the defense" means assisting or supporting the team or individuals responsible for protecting and preventing harm or danger from occurring. Full definition
The way Arsenal play currently does not help the defense at all. (justarsenal.com)
He is a proven stud that is dynamic enough to help this defense in multiple ways. (bloggingtheboys.com)
All the mechanisms of help defense that players use to cover for one another are challenged by the ever - present threat of perimeter shooting. (si.com)