treason

noun | \ ˈtrēz-ᵊn \ | trea·son

1. : the offense of attempting to overthrow the government of one's country or of assisting its enemies in war; specifically : the act of levying war against the United States or adhering to or giving aid and comfort to its enemies by one who owes it allegiance : the act of levying war against the United States or adhering to or giving aid and comfort to its enemies by one who owes it allegiance