Jurisdiction — In general — Territorial — Territorial limits of jurisdiction — Foreign sovereign directing national in United States to contravene United States law — Whether national has defence to action in United States courts — Act of State doctrine — The law of the United States

States as international persons — In general — Recognition of acts of foreign States and governments — Act of State doctrine — Foreign sovereign compulsion — Direction by foreign sovereign to national in United States to contravene United States law — Whether United States courts possessing jurisdiction — Claim of immunity from United States law — Whether necessary that claim be presented through diplomatic channels — The law of the United States