AWS Region

AWS Regions provide multiple, physically separated and isolated Availability Zones which are connected with low latency, high throughput, and highly redundant networking. These Availability Zones offer AWS customers an easier and more effective way to design and operate applications and databases, making them more highly available, fault tolerant, and scalable than traditional single datacenter infrastructures or multi-datacenter infrastructures. For customers who specifically need to replicate their data or applications over greater geographic distances, there are AWS Local Regions.

Resources

https://aws.amazon.com/about-aws/global-infrastructure/