Managing multi-cluster Kubernetes environments across clouds and data centers introduces complexity, security gaps, and observability challenges. This article explores how Calico Cluster Mesh provides seamless inter-cluster connectivity, fine-grained security policies, intelligent traffic management, and unified observability—empowering teams to build scalable, secure, and efficient Kubernetes architectures. Learn how companies like Box leverage Calico to enforce zero-trust security and simplify multi-cluster operations.