1900. In 1914 the division was designated the 7th Division as part of a broad reorganization of the National Guard. On 29 June 1916, the 7th Division was mustered into federal service at Mount Gretna and deployed to El Paso, Texas, to serve along the Mexican border as the Regular Punitive Expedition entered Mexico. Major General Charles M. Clement commanded, directing the First Brigade comprising the 1st, 2nd, and 3rd Regiments, the Second Brigade the 10th, 16th, and 18th Regiments, and the Third Brigade the 4th, 6th, and 8th Regiments. There was also a regiment of cavalry and one of artillery, plus two companies of signals troops and medical units. The camp outside El Paso gained the title 'Camp Stewart' after the Adjutant General, Thomas J. Stewart. On 19 September, one brigade was sent home. On 14 November, the 1st Artillery left for home; the 18th Infantry left for Pennsylvania on 18 December, and the remainder of the division between 2–19 January 1917. It appears that most of the division was mustered out of federal service on 23 February 1917 at Philadelphia. The remnant left on the border included the 8th and 13th Regiments, the newly formed 3rd Artillery and Company C of the Engineers. They were released from active service in March 1917. However, the call-up process for World War I was underway as these units left the border. The 13th Regiment began its return home from Texas on 21 March 1917, but en route were told that their mustering-out orders had been rescinded. World War I Federalization The division moved to Camp Hancock, Georgia, in April 1917, and was there when the entire division was federalized on 5 August 1917. From May to 11 October 1917, the division was reorganized into the two-brigade, four-regiment scheme, and thus became the 28th Division. Order of battle Headquarters, 28th Division 55th Infantry Brigade 109th Infantry Regiment 110th Infantry Regiment 108th Machine Gun Battalion 56th Infantry Brigade 111th Infantry Regiment 112th Infantry Regiment 109th Machine Gun Battalion 53rd Field Artillery Brigade 107th Field Artillery Regiment (75 mm) 108th Field Artillery Regiment (155 mm) 109th Field Artillery Regiment (75 mm) 103rd Trench Mortar Battery 107th Machine Gun Battalion 103rd Engineer Regiment 103rd Field Signal Battalion Headquarters Troop, 28th Division 103rd Train Headquarters and Military Police 103rd Ammunition Train 103rd Supply Train 103rd Sanitary Train 109th, 110th, 111th, and 112th Ambulance Companies and Field