Added note clarifying region option in steps

Author: AbdullahBell

articles/ddos-protection/manage-ddos-protection.md

@@ -47,6 +47,8 @@ In this quickstart, you'll create a DDoS protection plan and link it to a virtua
 
 1. Select **Review + create** then **Create**
 
+[!INCLUDE [DDoS-Protection-region-requirement.md](../../includes/DDoS-Protection-region-requirement.md)]
+
 ## Enable DDoS protection for a virtual network
 ### Enable DDoS protection for a new virtual network
 

includes/DDoS-Protection-region-requirement.md

@@ -0,0 +1,10 @@
+---
+author: abell
+ms.service: ddos-protection
+ms.topic: include
+ms.date: 04/29/2022
+ms.author: abell
+---
+
+>[!NOTE]
+>Although DDoS Protection Plan resources needs to be associated with a region, users can enable DDoS protection on Virtual Networks in different regions and across multiple subscriptions under a single Azure Active Directory Tenant.