aws ds add-region
Adds two domain controllers in the specified Region for the specified directory. AWS CLI reference
3 options Its page in the AWS CLI reference
Options
--directory-idThe identifier of the directory to which you want to add Region replication.--region-nameThe name of the Region where you want to add domain controllers for replication.--vpc-settingsContains VPC information for the CreateDirectory, CreateMicrosoftAD, or CreateHybridAD operation.