the 2nd infantry regiment (less 2nd battalion, companies l and m, and sanitary detachment) consolidated on 24 september – 1 november 1917 with the 5th infantry regiment, california national guard, and the consolidated unit was designated as the 159th infantry, an element of the 40th division; demobilized on 1 may 1919 at the presidio of san francisco, ca. the 2nd battalion, companies l and m, and sanitary detachment, 2nd infantry regiment consolidated on 25 september – 1 november 1917 with the 7th infantry regiment, california national guard, and the consolidated unit was designated as the 160th infantry, an element of the 40th division; it demobilized on 7 may 1919 at camp kearny in san diego.