What was the Battle of Lexiton and Concord in 1775?

Question

what was the cause and why should the colonist have a revolution?

Answer 1

This battle was the first encounter of the American Revolutionary War. General Gage commanded the British garrison in Boston. A Provincial Congress determined on independence for the American colonies had been established in Cambridge, Massachusetts outside Boston and the New England militia was drilling for war.
Gage determined to send a force to seize the weapons and ammunition held by the Congress in the armoury at Concord some 15 miles from Boston. Lieutenant Colonel Smith was dispatched with the grenadier and light infantry companies from each of the regiments in the garrison. Boston was sealed overnight to prevent word being passed of the departure of the force which was rowed across the harbour late on the night of 18th April 1775 to Charles River. The troops landed and began the march, but the sound of bells ringing showed that the countryside had been alerted.
Smith sent forward a force of light infantry under Major Pitcairne to secure the bridges at Concord. Pitcairne entered Lexington to find a body of militia drawn up on the village green. Shots were fired in which 18 Americans were hit and the militia dispersed.
...The troops marched on to Concord where such supplies as had not been removed were destroyed. In the meantime American militia attacked a body of Light Infantry on one of the bridges and drove them back.
Smith sent forward a force of light infantry under Major Pitcairne to secure the bridges at Concord. Pitcairne entered Lexington to find a body of militia drawn up on the village green. Shots were fired in which 18 Americans were hit and the militia dispersed.
...The troops marched on to Concord where such supplies as had not been removed were destroyed. In the meantime American militia attacked a body of Light Infantry on one of the bridges and drove them back.
Smith’s troops then began the march back to Boston, shot at from hidden positions by American militia along the whole route until they met Percy’s relieving force and the whole force withdrew into Boston. On the route British soldiers burned and looted houses of the colonials. In one or two cases colonial militia caught were summarily executed.
The British Regiments suffered 19 officers and 250 soldiers killed and wounded. The American losses did not exceed 90 men.
View the full details, at :
http://www.britishbattles.com/concord-lexington.htm

Answer 2

one if by land two if by sea, the british marched to concord to attempt to sieze a stockpile of munitions located there, the americans, under the cover of trees and bushes shot the at the british army and knocked them down one by one as they were marching in straight lines at the time, they eventually retreated and the americans won the first battle in the american revolution

the colonies fought the war because the colonies were being taxed by a government in which they had no representitives