“Non-Interference is the general rule, to which cases of
justifiable interference form exceptions, _limited by the
necessity of each particular case_.”[75]
Thus does Wheaton, like Washington, found intervention in the necessity
of the case. Evidently neither thought of founding it on a scheme for
the acquisition of foreign territory.
In harmony with Washington and Wheaton, I cite General Halleck, in his
excellent work:--
“Wars of intervention are to be justified or condemned
accordingly as they are or are not undertaken _strictly as
the means of self-defence_, and self-protection against the
aggrandizements of others, and without reference to treaty
obligations; for, if wrong in themselves, the stipulations of a
treaty cannot make them right.”[76]