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AWS vpc

AWS VPC Local Zone​

To use an AWS Local Zone, first you need to enable / opt in to the Local Zone from the AWS console or CLI.

For Local Zone networking, you do not need to create a new VPC. A VPC can span Availability Zones and Local Zones. You only need to create a new subnet inside the existing VPC and select the enabled Local Zone as the subnet location. ([AWS Documentation][1])

Correct Flow​

Enable Local Zone
   ↓
Select existing VPC
   ↓
Create subnet in Local Zone
   ↓
Launch supported resources in that Local Zone subnet

Correct Sentence for Your Document​

To use an AWS Local Zone, we must first opt in to the Local Zone. After enabling it, we do not need to create a new VPC. We can extend an existing VPC by creating a subnet in the Local Zone and then launch supported resources in that subnet.