Final answer:
Insufficient demand to maintain EA capability is defined as less than three aircraft confined space requirements in a certain period of time.
Step-by-step explanation:
Insufficient demand to maintain EA (Electronic Attack) capability is defined as less than three aircraft confined space requirements in a how many-month period.
This question is related to the military and specifically to electronic warfare capabilities. EA capability refers to the ability to conduct electronic attacks on enemy forces. The question is asking about the threshold for maintaining this capability based on the number of aircraft confined space requirements over a certain period of time. The specific number of months is not mentioned in the question.