As well as being the capital of the provinces of Hesse-Nassau & Kurhessen, Kassel had some important targets.

Fieseler aircraft plant
Henschel & Sohn facilities, maker of the Tiger I and King Tiger heavy tanks
The Henschel & Sohn firm's locomotive plant
engine plant
motor transport plant
railway works
Military HQs at Wehrkreis IX, and Bereich Hauptsitz Kassel
Central Germany HQ, highway & railway construction
Regional Supreme Court
As well as being the capital of the provinces of Hesse-Nassau & Kurhessen, Kassel had some important targets.
Fieseler aircraft plant
Henschel & Sohn facilities, maker of the Tiger I and King Tiger heavy tanks
The Henschel & Sohn firm's locomotive plant
engine plant
motor transport plant
railway works
Military HQs at Wehrkreis IX, and Bereich Hauptsitz Kassel
Central Germany HQ, highway & railway construction
Regional Supreme Court
Bombing of Kassel in World War II