Arnold Webster Bunch Jr. is a retired United States Air Force four-star general. He last served as the commander of Air Force Materiel Command, headquartered at Wright-Patterson Air Force Base, Ohio. He is responsible for installation and mission support, discovery and development, test and evaluation, life cycle management services and sustainment of virtually every major Air Force weapon system. The command employs approximately 80,000 people and manages $60 billion of budget authority annually. Before his current assignment, he was the military deputy in the Office of the Assistant Secretary of the Air Force for Acquisition at The Pentagon.

The Air Force Materiel Command (AFMC) is a Major Command (MAJCOM) of the United States Air Force (USAF). AFMC was created on July 1, 1992, through the amalgamation of the former Air Force Logistics Command (AFLC) and the former Air Force Systems Command (AFSC).