FORMAL DECLARATION OF WAR.
Spain having thus denied the demand of the United States and initiated that complete form of rupture of relations which attends a state of war, the executive powers authorized by the resolution were at once used by me to meet the enlarged contingency of actual war between Spain and the United States.
On April 22d I proclaimed a blockade of the northern coast of Cuba, including ports on said coast between Cardenas and Bahia Honda, and the port of Cienfuegos on the south coast of Cuba, and on the 23d I called for volunteers to execute the purpose of the resolution.
By my message of April 25th the Congress was informed of the situation, and I recommended formal declaration of the existence of a state of war between the United States and Spain. The Congress accordingly voted on the same day the act approved April 25, 1898, declaring the existence of such war, from and including the 21st day of April, and re-enacted the provisions of the resolution of April 20th, directing the President to use all the armed forces of the nation to carry that act into effect.
Due notification of the existence of war as aforesaid was given April 25th by telegraph to all the governments with which the United States maintain relations, in order that their neutrality might be assured during the war.
The various governments responded with proclamations of neutrality, each after its own methods. It is not among the least gratifying incidents of the struggle that the obligations of neutrality were impartially discharged by all, often under delicate and difficult circumstances.
In further fulfillment of international duty, I issued, April 26th, a proclamation announcing the treatment proposed to be accorded to vessels and their cargoes as to blockades, contraband, the exercise of the right of subjects and the immunity of neutral flags and neutral goods under the enemy’s flag. A similar proclamation was made by the Spanish government. In the conduct of hostilities the rules of the declaration of Paris, including abstention from resort to privateering, have accordingly been observed by both belligerents, although neither was a party to that declaration.