The Battle of Bunker Hill significantly affected British perceptions of American resolve by demonstrating their tenacity.

Although it was a British victory, the significant losses suffered by British troops—exceeding 1,000 soldiers—demonstrated the colonists' readiness to fight vigorously for their cause. This revelation challenged British expectations of a swift and easy triumph, highlighting the resolve and dedication of the American forces. Consequently, British commanders started to reevaluate their strategy, acknowledging that the war would demand greater effort and planning than they had initially thought.