The two correct responses regarding why colonial minutemen were so prepared for the arrival of the British in Concord are:
- Paul Revere had warned villages that the redcoats were coming.
- When the British headed out, Americans hung two lamps as a warning signal.
The Green Mountain Boys were not specifically involved in the warning prior to the events at Concord. Instead, the significant role was played by Paul Revere and others who rode to alert the colonial militias. The two lanterns (one if by land, two if by sea) served as a signal for the colonies to prepare for the British attack.