The global event occurring simultaneously with the War of 1812 was the Napoleonic Wars.

These wars fought between France and various European coalitions led by Britain, significantly impacted global politics and trade during the early 19th century. The Napoleonic Wars created tension on the high seas, as Britain sought to enforce blockades and restrict trade with France and its allies. This directly affected American shipping and trade, as the United States struggled to maintain its neutral stance while being caught in the crossfire of European conflicts. The British impressment of American sailors and interference with U.S. maritime trade were key grievances that led to the outbreak of the War of 1812. Thus, the Napoleonic Wars not only shaped the geopolitical landscape of the time but also played a crucial role in motivating the United States to assert its independence and protect its economic interests against British aggression.