Final answer:
Captain Oliver Hazard Perry won the Battle of Lake Erie in the War of 1812 and made his famous declaration after securing control over six British vessels.
Step-by-step explanation:
Captain Oliver Hazard Perry gained control over 6 British ships during the pivotal Battle of Lake Erie in the War of 1812. After a victorious battle, Perry famously declared, "We have met the enemy, and they are ours." This victory was crucial, as it ensured American control of the lake, disrupted the supply and reinforcement lines for the British, and paved the way for the re-conquest of Detroit.
The War of 1812 saw several key naval battles, with the Americans facing an uphill battle against the superior numbers and blockade imposed by the British fleet. However, the victory at Lake Erie, along with other victories like those of the USS Constitution, lifted American morale and demonstrated the capability and resilience of the American Navy during this time.