Microservices with containers represents the convergence of two architectural paradigms that enable building distributed, scalable applications where each service runs in its own isolated environment. Containers provide the lightweight runtime packaging that makes microservices practical, offering consistent deployment across environments while maintaining resource efficiency. The key mental model to internalize: containers solve the "works on my machine" problem at scale, while orchestration platforms like Kubernetes manage the lifecycle, networking, and resilience of hundreds or thousands of containerized services working together as a cohesive system.