Can AWS Backup perform cross-region copies using AWS managed keys?

Question

I [read](https://docs.aws.amazon.com/aws-backup/latest/devguide/create-cross-account-backup.html#backup-cab-notes) that AWS Backup cannot copy backups across account using AWS managed keys. However, can AWS Backup copy backups across regions (within a single account) using AWS managed keys?

Answer

Hello.

I think it is possible to copy using an AWS management key if it is cross-region within the same AWS account.  
https://docs.aws.amazon.com/aws-backup/latest/devguide/encryption.html#encryption-cross-region-copies  
> When you use AWS Backup to copy your backups across accounts or Regions, AWS Backup automatically encrypts those copies, even if the original backup is unencrypted. AWS Backup encrypts your copy using the target vault's KMS key.

Can AWS Backup perform cross-region copies using AWS managed keys?

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