diff --git a/battle-of-stalingrad-factfile/readme.md b/battle-of-stalingrad-factfile/readme.md
index fa05e5c..891cf1d 100644
--- a/battle-of-stalingrad-factfile/readme.md
+++ b/battle-of-stalingrad-factfile/readme.md
@@ -13,6 +13,8 @@ Stalingrad was the turning point of WWII on the Eastern Front, where the Soviet
 ## Topics:
 [Who was involved?](whowasinvolved.md)
 
+[What happened?](whathappened.md)
+
 
 ## Licensing
 This project is licensed under the Apache 2.0 license.