Which MAJCOM organizes, trains, equips, and maintains resources to conduct a broad spectrum of air operations in the Department of Defense's largest area of responsibility?

The correct answer is PACAF, which stands for the Pacific Air Forces. This Major Command (MAJCOM) is responsible for organizing, training, equipping, and maintaining air resources to conduct a wide variety of air operations within the Indo-Pacific region, which is the largest area of responsibility for the Department of Defense. PACAF plays a crucial role in aligning air power with the strategic priorities of the U.S., supporting combatant commanders, and ensuring the readiness of forces to respond to regional challenges and contingencies.

In this context, the emphasis on "broad spectrum of air operations" highlights PACAF's versatility in missions that include humanitarian assistance, disaster relief, and combat operations, among others. The command's extensive reach and influence in the Pacific region make it uniquely positioned to handle diverse operational demands, showcasing the importance of air power in maintaining peace, stability, and engagement in this critical part of the world.