 From 28 January 1899 through 6 February 1899, the three companies were demobilized in Washington and California and returned to the 2d Infantry Regiment (California).On 11 May 1907, the 2d Infantry Regiment (California) was reduced and consolidated with the 6th Infantry Regiment (California) (which had originally been organized on 22 July 1885 as the 6th Infantry Battalion (California)) to form the 2d Infantry Regiment (California), with headquarters in Sacramento, as part of the California National Guard.On 18 June 1916, the 2d Infantry Regiment (California) was mobilized for border security duty during the Mexican Border Crisis.