Final answer:
The monument in Queenston, Ontario, celebrates Major General Sir Isaac Brock, who helped repel the U.S. invasion in the War of 1812, also known as the 'Second War of American Independence'.
Step-by-step explanation:
The 185-foot monument in Queenston, Ontario, is dedicated to Major General Sir Isaac Brock who played a crucial role in repelling the U.S. invasion during the War of 1812. This war is sometimes referred to as the 'Second War of American Independence' and involved critical issues such as the British practice of impressment and the support of Native American resistance to U.S. expansion. The monument stands as a testament to Brock's leadership and the broader military and political complexities of the era.