The Military Commissions Act of 2006, passed by Congress on Jan. 3, 2006 and signed into law by President Bush on Oct. 17, 2006, stated:
"The term 'lawful enemy combatant' means a person who is:
1.a member of the regular forces of a State party engaged in hostilities against the United States;
2.a member of a militia, volunteer corps, or organized resistance movement belonging to a State party engaged in such hostilities, which are under responsible command, wear a fixed distinctive sign recognizable at a distance, carry their arms openly, and abide by the law of war; or
3.a member of a regular armed force who professes allegiance to a government engaged in such hostilities, but not recognized by the United States.
The term 'unlawful enemy combatant' means:
1.a person who has engaged in hostilities or who has purposefully and materially supported hostilities against the United States or its co-belligerents who is not a lawful enemy combatant (including a person who is part of the Taliban, al Qaeda, or associated forces); or
2.a person who, before, on, or after the date of the enactment of the Military Commissions Act of 2006, has been determined to be an unlawful enemy combatant by a Combatant Status Review Tribunal or another competent tribunal established under the authority of the President or the Secretary of Defense."