Cloud Disaster Recovery (DR) combines cloud infrastructure capabilities with structured resilience planning to ensure business continuity when primary systems fail. Unlike traditional DR requiring duplicate physical data centers, cloud DR leverages geographic distribution, automated orchestration, and elastic scaling to protect workloads across regions. The core challenge lies in balancing recovery speed against operational cost—organizations must navigate trade-offs between infrastructure readiness (hot vs. cold sites), replication patterns (synchronous vs. asynchronous), and compliance requirements while maintaining acceptable Recovery Time Objectives (RTO) and Recovery Point Objectives (RPO). Modern cloud DR extends beyond backup restoration to include failover automation, data consistency verification, and business impact analysis that prioritizes which systems recover first.