Task: Question Generation
Input (English): Context : On the morning of 17 April 1945 Leutnant Gerhard Bauer, Oberleutnant August Lambert, and another pilot were taking off from Kamenz for a mission to the front when American P-51Ds of the 55th Fighter Group appeared. 
Subject : August Lambert 
Relation : military branch
Output (English): In what military organization did August Lambert serve?