AWS SDK for .NET Documentation
DeleteVpnConnection Method (request)
AmazonAmazon.EC2AmazonEC2ClientDeleteVpnConnection(DeleteVpnConnectionRequest) Did this page help you?   Yes   No    Tell us about it...
Deletes a VPN connection.
Declaration Syntax
C#
public DeleteVpnConnectionResponse DeleteVpnConnection(
	DeleteVpnConnectionRequest request
)
Parameters
request (DeleteVpnConnectionRequest)
Delete Vpn Connection request
Return Value
Delete Vpn Connection Response from the service
Remarks
This operation will delete a VPC and all its associated components. Another reason to use this operation is if you believe the tunnel credentials for your VPN connection have been compromised. In that situation, you can delete the VPN connection and create a new one that has new keys, without needing to delete the VPC or VPN gateway. If you create a new VPN connection, you must reconfigure the customer gateway using the new configuration information returned with the new VPN connection ID. If you're deleting the VPC and all its associated parts, we recommend you detach the VPN gateway from the VPC and delete the VPC before deleting the VPN connection.
Exceptions

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)