Our existing relations with Yucatan are of a peculiar character, as will be perceived from the note of the Secretary of State to their commissioner dated on the 24th of December last, a copy of which is herewith transmitted. Yucatan has never declared her independence, and we treated her as a State of the Mexican Republic. For this reason we have never officially received her commissioner; but whilst this is the case, we have to a considerable extent recognized her as a neutral in our war with Mexico. Whilst still considering Yucatan as a portion of Mexico, if we had troops to spare for this purpose I would deem it proper, during the continuance of the war with Mexico, to occupy and hold military possession of her territory and to defend the white inhabitants against the incursions of the Indians, in the same way that we have employed our troops in other States of the Mexican Republic in our possession in repelling the attacks of savages upon the inhabitants who have maintained their neutrality in the war. But, unfortunately, we can not at the present time, without serious danger, withdraw our forces from other portions of the Mexican territory now in our occupation and send them to Yucatan. All that can be done under existing circumstances is to employ our naval forces in the Gulf not required at other points to afford them relief; but it is not to be expected that any adequate protection can thus be afforded, as the operations of such naval forces must of necessity be confined to the coast. I have considered it proper to communicate the information contained in the accompanying correspondence, and I submit to the wisdom of Congress to adopt such measures as in their judgment may be expedient to prevent Yucatan from becoming a colony of any European power, which in no event could be permitted by the United States, and at the same time to rescue the white race from extermination or expulsion from their country. JAMES K. POLK. WASHINGTON, _May 5, 1848_. _To the Senate of the United States_: I communicate herewith a report from the Secretary of State, together with the correspondence "between the Secretary of State and Don Justo Sierra, the representative of Yucatan," called for by the resolution of the Senate of the 4th instant. I communicate also additional documents relating to the same subject. JAMES K. POLK. WASHINGTON, _May 8, 1848_. _To the Senate of the United States_: