The proclamation was issued as a war measure, adopted by the President as commander-in-chief of the armed forces, on grounds of military necessity.

该公告是作为一项战争措施发布的，由总统以武装部队总司令的身份基于军事需要而采纳。

Among the extreme war measures adopted by the Northern government must be counted the emancipation of the slaves in the states in arms against the union.

——在北方政府采取的极端战争措施中，必须算上解放各州武装起来反对联邦的奴隶。