H. M. Brackenridge, Mexican letters written during the progress of the late war between the United States and Mexico… (1850)
“ The tendency of public opinion throughout the civilized world, and especially in the United States, against all wars, may be justly set down as an evidence of the progress of civilization. There are many who regard all war, defensive as well as offensive, as wicked and inexcusable. Others, justify defensive wars only, as if it were possible for one to defend himself by merely warding off the blows of the assailant. Some regard wars made for conquest merely, as unlawful, and no sound moralist can approve of a war instigated by a motive so unjust and dishonest. ”
