Possible Clues:

• Minimum number needed to take decisions
• Minimum number required for valid committee meeting
• Minimum required number
• Question soldiers with hesitation, the smallest number acceptable
• Voters who question nothing abnormal
• Minimum number required for a valid meeting
• Number of members required to be present at committee meeting
• Minimum number of members to conduct business
• That'll do for a meeting
• Sort of status that's odd, having minimum number for meeting