Treason is an act of betraying one's country by levying war against it or providing aid and comfort to its enemies. It is considered one of the most serious crimes under U.S. law.
Related terms
Sedition Act (1798): A federal law that criminalized making false statements critical of government officials or actions, aimed at suppressing dissent during an era of political tension.
Benedict Arnold: A historical figure known for betraying his fellow Americans during the Revolutionary War by attempting to hand over West Point to British forces.
Espionage: The practice of spying or gathering confidential information about another country's activities with intent to harm its national security.