Answer:
The colony of Massachusetts
Step-by-step explanation:
The colony of Massachusetts began preparing for war by accumulating military supplies in Concord. The accumulation of military supplies in Concord, specifically the storage of gunpowder in a depot in the town, was one of the events that led to the outbreak of the American Revolutionary War. In April 1775, British soldiers were sent to Concord to seize the military supplies and arrest the leaders of the colonial resistance movement. This action sparked the "shot heard round the world," as the colonists resisted the British soldiers and the war began. The colonists in Massachusetts, and particularly in Concord, were well-prepared for the conflict and had been accumulating military supplies in anticipation of a potential war with Britain.