US Presidency
1867

The first of these may be called jurisdiction under military law, and is found in acts of Congress prescribing rules and articles of war or otherwise providing for the government of the national forces; the second may be distinguished as military government, superseding as far as may be deemed expedient the local law, and exercised by the military commander under the direction of the President, with the express or implied sanction of Congress; while the third may be denominated martial law proper, and is called into action by Congress, or temporarily, when the action of Congress can not be invited, and in the case of justifying or excusing peril, by the President, in times of insurrection or invasion or of civil or foreign war, within districts or localities where ordinary law no longer adequately secures public safety and private rights.