Which of the following is a capability of a MEF?

• A. Peacetime and wartime
• B. Wartime only
• C. Peacetime only
• D. Neither

Answer: (A)

A Marine Expeditionary Force is a complete, expeditionary fighting force designed to operate across the full spectrum of conflict. It is built to be rapidly deployable and self-sustaining, with ground, air, and logistics elements integrated for seamless action in diverse environments. In peacetime, its role centers on deterrence, readiness, joint training, and humanitarian or crisis-response missions. In wartime, it can execute offensive and defensive operations, sustain extended campaigns, and rapidly project combat power anywhere the mission requires.

That broad, dual capability is why the option describing both peacetime and wartime best fits. The other choices imply limits to the MEF’s role that do not reflect its intended, full-spectrum design.