Final answer:
The death of Major General Robert Ross led to demoralization and retreat of British troops in the War of 1812, and although it was a significant event, it did not trigger the Battle of New Orleans.
Step-by-step explanation:
The death of Major General Robert Ross had a significant impact on the British troops during the War of 1812. After the death of Ross, the British were eventually halted by strong American resistance and ultimately retreated from their offensive against Baltimore. This event demoralized the British troops and without the leadership of their commander, the impetus behind the attack fizzled, leading the British to break off their attack and sail for New Orleans.
The subsequent Battle of New Orleans, fought after the peace treaty was signed but before news of the treaty had reached the combatants, was a separate event and did not occur as a direct consequence of Ross's death. Instead, the demoralization and retreat following Ross's death was a significant setback for the British during the War of 1812, evidencing the effects of leadership loss in military campaigns.