Chapter XXIX: Section 1: Be it enacted by the Senate and House of

Representatives of the United States of America in Congress
assembled, That whenever there shall be a declared war between
the United States and any foreign nation or government, or any
invasion or predatory incursion shall be perpetrated,
attempted, or threatened against the territory of the United
States, by any foreign nation or government, and the President
of the United States shall make public proclamation of the
event, all natives, citizens, denizens, or subjects of the
hostile nation or government, being males of the age of
fourteen years and upwards, who shall be within the United
States, and not actually naturalized, shall be liable to be
apprehended, restrained, secured and removed, as alien
enemies. And the President of the United States shall be, and
he is hereby authorized, in any event, as aforesaid, by his
proclamation thereof or other public act, to direct the
conduct to be observed, on the part of the United States,
towards the aliens who shall become liable as aforesaid; 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, shall refuse or neglect to depart therefrom; and to
establish any other regulations which shall be found necessary
in the premises and for the public safety; Provided, that
aliens resident within the United States, who shall become
liable as enemies, in the manner aforesaid, and who shall not
be chargeable with actual hostility, or other crime against
the public safety, shall be allowed for the recovery,
disposal, and removal of their goods and effects, and for
their departure, the full time which is, or shall be
stipulated by any treaty, where any shall have been between
the United States and the hostile nation or government, of
which they shall be natives, citizens, denizens, or subjects:
and when no such treaty shall have existed, the President of
the United States may ascertain and declare such reasonable
time as may be consistent with the public safety, and
according to the dictates of humanity and national
hospitality.