The "1812 Overture" is a classical music composition by Pyotr Ilyich Tchaikovsky, written in 1880 to commemorate Russia's defense against Napoleon's invasion in 1812. The piece is famous for its powerful orchestration, including the use of cannons and church bells, which symbolize the battle's intensity and the eventual victory. The overture is structured in a way that combines various themes, including the Russian national anthem, "God Save the Tsar," and a French theme representing the invading forces. It is often performed during celebrations and fireworks displays, making it a popular choice for concerts and public events.