The Full Story
The American flag became a shield for slavers.
After 1807, Britain aggressively patrolled the Atlantic, boarding and searching ships suspected of carrying enslaved people. But American ships were off-limits. The United States refused to grant Britain the right to search its vessels. Memories of British impressment during the War of 1812 were too raw.
Slavers exploited this ruthlessly. Ships would fly the American flag whether they were American or not. When a British warship approached, they'd hoist the Stars and Stripes and sail away untouchable.
Britain pleaded, negotiated, and pressured. Every few years, diplomats would try again. Every few years, the American Senate would refuse. Southern senators, protecting their 'peculiar institution, ' blocked any cooperation.
It took the American Civil War to change things. In 1862, with the South in rebellion and no longer blocking treaties, Lincoln's government finally signed an agreement allowing mutual search rights. The 'flag of freedom' stopped protecting slavers.
Fifty-five years. Fifty-five years of American obstruction. Thousands remained enslaved because one nation refused to let another search its ships.
Why This Matters
This story complicates American narratives about slavery. While Britain fought the slave trade globally, America actively obstructed those efforts for over half a century.