Your organization operates a Google Cloud Virtual Private Cloud (VPC) with subnets located in the regions us-east1 , us-west4 , and europe-west4 , all using the default VPC configuration . A branch office in Europe needs to connect to resources in this VPC through a Highly Available (HA) VPN setup. You’ve already configured HA VPN and attached it to a Cloud Router located in the europe-west4 region. You now need to ensure that users in the branch office can seamlessly access all resources across the VPC, including those in other regions , with minimal complexity. What should you do?