noun
assistant chief of staff, G2
Military title for the assistant chief of staff in charge of intelligence (G2). Domain-specific term used in military contexts.
彼は調査部長として情報分析を統括している。
As the assistant chief of staff, G2, he oversees intelligence analysis.
Compound of 調査 (investigation, intelligence) and 部長 (department head). The specific military rank translation is conventional.