Amazon DocumentDB (with MongoDB compatibility) is a fast, scalable, highly available, and fully managed document database service that supports MongoDB workloads. Amazon DocumentDB is now available in the Europe (Frankfurt) region with R5 instances, the next generation of memory-optimized instances. Now you can create Amazon DocumentDB clusters with R5 instances in Europe (Frankfurt) and use the same MongoDB application code, drivers, and tools that you do today to run, manage, and scale workloads on Amazon DocumentDB. Enjoy improved performance, scalability, and availability without having to worry about managing the underlying infrastructure.
You can use Amazon DocumentDB in the following AWS regions: US East (N. Virginia), US East (Ohio), US West (Oregon), Europe (Ireland), and Europe (Frankfurt). For more information on AWS regions and services, please visit the AWS global region table.
Source:: Amazon AWS