Final answer:
The highest grade civilian position in the CE squadron is usually held by the Lieutenant Colonel. Lieutenant Colonel Charles Young was the highest-ranking African American officer at the outbreak of World War I.
Step-by-step explanation:
The highest grade civilian position in the CE squadron is usually held by the Lieutenant Colonel. Lieutenant Colonel Charles Young was the highest-ranking African American officer at the outbreak of World War I. Despite facing efforts by military officials to force him into retirement, he successfully held this position.