Question: The battle where Bodo Sandberg earned the Cross of Merit and the Airman's Cross for his bravery started on what date?
Sentence (from "Battle of the Netherlands"): The Battle of the Netherlands (Dutch: "Slag om Nederland" ) was part of Case Yellow (German: "Fall Gelb" ), the German invasion of the Low Countries (Belgium, Luxembourg, and the Netherlands) and France during World War II.
Relevant evidence: No