Treason Common

a crime that undermines the offender's government

"The spy was charged with treason for secretly passing military secrets to an invading army, thereby undermining his own government."

disloyalty by virtue of subversive behavior

"The spy was arrested for treason after secretly passing classified documents to a foreign power."

an act of deliberate betrayal

"The spy faced execution for treason after he deliberately betrayed his country's secrets to the enemy."

The crime of betraying one’s own country.

"The spy was arrested for treason after he leaked classified military plans to a foreign power."