The Circuit Breaker pattern is a design pattern used in microservices architecture to prevent service failures from impacting an entire system by monitoring service interactions, detecting an increase in failures, and halting traffic to the failing service until recovery. This allows systems to recover gracefully, avoid bottlenecks, and maintain stability. The pattern operates in three primary states: closed, open, and half-open, with a predefined threshold for error rates that determines when the breaker "trips" and traffic is halted. Implementing this pattern can help prevent load amplification caused by failures, which can lead to metastable failures where the system becomes stuck in an unstable state. By using the Circuit Breaker pattern, applications can be designed to handle failures more effectively, reducing the impact of network disruptions and maintaining system resilience.