diff --git a/released/dsag/betriebstag2024/exercises/EXERCISE4/SOLUTION_EX4/variables.tf b/released/dsag/betriebstag2024/exercises/EXERCISE4/SOLUTION_EX4/variables.tf
index 8e4c4407..1aa5e488 100644
--- a/released/dsag/betriebstag2024/exercises/EXERCISE4/SOLUTION_EX4/variables.tf
+++ b/released/dsag/betriebstag2024/exercises/EXERCISE4/SOLUTION_EX4/variables.tf
@@ -9,7 +9,7 @@ variable "globalaccount" {
 variable "region" {
   type        = string
   description = "The region where the project account shall be created in."
-  default     = "eu10"
+  default     = "us10"
 }
 
 ###
diff --git a/released/dsag/betriebstag2024/exercises/EXERCISE5/SOLUTION_EX5/variables.tf b/released/dsag/betriebstag2024/exercises/EXERCISE5/SOLUTION_EX5/variables.tf
index a24c3c4e..692add5a 100644
--- a/released/dsag/betriebstag2024/exercises/EXERCISE5/SOLUTION_EX5/variables.tf
+++ b/released/dsag/betriebstag2024/exercises/EXERCISE5/SOLUTION_EX5/variables.tf
@@ -9,7 +9,7 @@ variable "globalaccount" {
 variable "region" {
   type        = string
   description = "The region where the project account shall be created in."
-  default     = "eu10"
+  default     = "us10"
 }
 
 ###
diff --git a/released/dsag/betriebstag2024/exercises/EXERCISE6/SOLUTION_EX6/variables.tf b/released/dsag/betriebstag2024/exercises/EXERCISE6/SOLUTION_EX6/variables.tf
index a24c3c4e..692add5a 100644
--- a/released/dsag/betriebstag2024/exercises/EXERCISE6/SOLUTION_EX6/variables.tf
+++ b/released/dsag/betriebstag2024/exercises/EXERCISE6/SOLUTION_EX6/variables.tf
@@ -9,7 +9,7 @@ variable "globalaccount" {
 variable "region" {
   type        = string
   description = "The region where the project account shall be created in."
-  default     = "eu10"
+  default     = "us10"
 }
 
 ###