The department is mobilizing a division at full strength at San Antonio, Texas, for the purpose of field training of officers and men, and for the further purpose of holding manoeuvres Involving possible operations against Galveston. There will be assembled at Galveston a force of three regiments for the protection of that place against possible attack by the navy. On the Pacific Coast the mobilization will involve a brigade of infantry In the Los Angeles district for the purpose of defending San Diego and San Pedro against possible attack by the navy. The mobilization of these troops will furnish an excellent opportunity for the instruction of a number of senior officers in the elements of higher command. It will also put to a practical test the preparedness of the staff departments for the mobilization of troops. Major Gen. William H. Carter will command the provisional division. The brigades at San Antonio will be commanded by Brig. Gens. A. L. Mills. F. A. Smith, and Ralph W. Hoyt; the troops at Galveston will be under the command of Brig. Gen. Ramsay D. Potts: the troops In the Los Angeles District will be commanded by Brig. Gen. Tasker H. Bliss.
SOURCE: The New York Times, March 8, 1911, p 1.
APP NOTE: The 20,000 troops involved were estimated to be roughly one-quarter of the total United States Army.
William Howard Taft, White House Statement on Military Movements Near the Mexican Border Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/363265