Which event was primarily responsible for the start of the War of 1812?

The outbreak of the War of 1812 was significantly influenced by British interference with American shipping. During this period, the British Royal Navy imposed restrictions on American trade, particularly with France, which was a major antagonist of Britain during the Napoleonic Wars. This interference included the seizure of American merchant ships and the impressment of American sailors into the British Navy, actions that were seen as violations of American sovereignty and rights.

As the United States sought to assert its independence and protect its commerce, these provocations by Britain created increasing tensions between the two nations. The consistent encroachment on American trade and maritime rights ultimately fueled public sentiment in favor of war, leading to a declaration of war against Britain in 1812. This context is crucial to understanding why British interference with American shipping is seen as the primary catalyst for the conflict.

The other options provided, while related to the period, do not carry the same immediate and direct impact on the initiation of hostilities as the British actions did. The French Revolution, for example, influenced American foreign policy but was not the direct cause of the war. Economic sanctions against Britain were part of the broader trade conflict but stemmed from the issues related to shipping interference. The Mexican-American War occurred much later