Why did the redcoats attack lexington and concord

The first Battle at Lexington and Concord was on In April 1775, when British troops are sent to confiscate (take away) colonial weapons. They run into an untrained and angry militia. This ragtag army defeats 700 British soldiers and the surprise victory boosts their confidence for the next war ahead.

This would be a example of a "i want to be single person"