File No. 312.11/6993.

The Secretary of State to the Secretary of the Navy.

Sir: I have the honor to acknowledge the receipt of your letter of November 29, inviting [etc.]

In reply I have the honor to state that this Department has made urgent representations to the authorities in Mexico City and to General Alvaro Obregon, concerning the protection of American interests in the Yaqui Valley.

Similar representations have been made in regard to the situation at Los Mochis. For your information, there is enclosed herewith a copy of a letter dated November 29, 1915, from Mr. Eliseo Arredondo, the Washington representative of the de facto government of Mexico, stating that protection would be accorded American citizens at Los Mochis.

I have [etc.]

Robert Lansing.