Overview:On June 17, 1775 the Battle of Bunker Hill took place. It is one of the most important colonial victories in the U.S. War for Independence. Fought during the Siege of Boston, it lent considerable encouragement to the revolutionary cause. This battle made both sides realize that this was not going to be a matter decided on by one quick and decisive battle. When the British planned to occupy Dorchester Heights on the Boston Peninsula, the colonists became alarmed at the build up of British troops off of the coast. The colonists decided that action had to be taken so as to stop the threatening British movement in this territory to protect themselves from an attack. The Battle of Bunker Hill started when the colonists learned about the British plan to occupy Dorchester Heights. The colonists were understandably shaken by this news. They thought of this as the last straw, and they had to protect their land and freedom.