"Whenever there is declared a war between the United States and any foreign nation or Government or any invasion or predatory incursion is perpetrated, attempted, or threatened against the territory of the United States by any foreign nation or Government, and the President makes public proclamation of the event, all native citizens, denizens, or subjects of a hostile nation or Government being male of the age of 14 years and upward, who shall be within the United States and not actually naturalized, shall be liable to be apprehended, restrained, secured, and removed as alien enemies. The President is authorized in any such event by his proclamation thereof, or other public acts, to direct the conduct to be observed on the part of the United States toward the aliens who become so liable; the manner and degree of the restraint to which they shall be subject and in what cases and upon what security their residence shall be permitted, and to provide for the removal of those who, not being permitted to reside within the United States, refuse or neglect to depart therefrom; and to establish any such regulations which are found necessary in the premises and for the public safety." _Whereas_, By Sections 4,068, 4,069, and 4,070 of the Revised Statutes, further provision is made relative to alien enemies; [Sidenote: All officers of the United States are warned to be vigilant.] _Now, therefore_, I, Woodrow Wilson, President of the United States of America, do hereby proclaim, to all whom it may concern, that a state of war exists between the United States and the Imperial German Government, and I do specially direct all officers, civil or military, of the United States that they exercise vigilance and zeal in the discharge of the duties incident to such a state of war, and I do, moreover, earnestly appeal to all American citizens that they, in loyal devotion to their country, dedicated from its foundation to the principles of liberty and justice, uphold the laws of the land, and give undivided and willing support to those measures which may be adopted by the constitutional authorities in prosecuting the war to a successful issue and in obtaining a secure and just peace; And, acting under and by virtue of the authority vested in me by the Constitution of the United States and the said sections of the Revised Statutes, [Sidenote: Conduct to be observed toward alien enemies.] I do hereby further proclaim and direct that the conduct to be observed on the part of the United States toward all natives, citizens, denizens, or subjects of Germany, being male of the age of 14 years and upward, who shall be within the United States and not actually naturalized, who for the purpose of this proclamation and under such sections of the Revised Statutes are termed alien enemies, shall be as follows: [Sidenote: Alien enemies must preserve the peace.]