A Marine Expeditionary Brigade typically consists of how many personnel, and what is its primary mission?

• A. 14,000-17,000; respond to crisis
• B. 5,000-7,000; conduct reconnaissance
• C. 10,000-12,000; establish bases
• D. 20,000-25,000; large-scale assault

Answer: (A)

A Marine Expeditionary Brigade is the mid-sizedMAGTF built for rapid crisis response. It typically fields about 14,000 to 17,000 Marines and sailors, giving it a balanced mix of ground forces, aviation, and logistics to operate independently for extended periods ashore. That size and composition are precisely what makes it well-suited to respond quickly to crises and conduct expeditionary operations across a range of missions, without needing the larger force of a Marine Expeditionary Force. The other options describe forces that are either too small or too large for this role, or assign missions that don’t align with the MEB’s purpose (for example, a much smaller unit aligns with forward presence rather than a robust crisis-response force, while a much larger force is oriented toward broader campaigns).