The authors of the Constitution had lived under the government of England where the King was not only commander in chief of the Armies of the Empire, but could declare war as well. History ...

Only a war lawfully declared, by a government with the authority to declare war, can be a just war. This rule enormously restricts the number of groups that can ethically wage war. For example ...

Nato would declare war on Russia if one of its members was attacked, triggering the alliance's Article 5 mutual defence clause. This could happen in the case of a ground invasion by Russian forces ...

Pope Francis last week told editors of the European cultural magazines of the Society of Jesus that, in his opinion, World War III had been declared, it was reported Tuesday by La Civilta Cattolica.