AWS IoT Device Defender is now available in AWS Middle East (Bahrain), extending its footprint to 18 AWS regions. AWS IoT Device Defender is a fully-managed service that makes it easy for customers to manage the end-to-end security of their IoT fleet. 

from Recent Announcements https://aws.amazon.com/about-aws/whats-new/2019/11/aws-iot-device-defender-now-available-in-aws-middle-east-bahrain-region/