You have a Microsoft 365 subscription.
From Microsoft 365 Defender, you create a role group named US eDiscovery Managers by copying the eDiscovery Manager role group.
You need to ensure that the users in the new role group can only perform content searches of mailbox content for users in the United States.
Solution: From Windows PowerShell, you run the New-complianceSecurityFilter cmdlet with the appropriate parameters.
Does this meet the goal?