A partial mobilization had already taken place at each regimental headquarters. The drafts, consisting mostly of men who had served in the Territorial Force and in previous wars, were sent to district concentration camps. The Auckland Mounted Rifles, Auckland Infantry Battalion, and the No. 1 Field Ambulance of the New Zealand Medical Corps were quartered in Alexandra Park, Auckland. The Wellington Mounted Rifles and the Wellington Infantry Battalion camped at the Awapuni Racecourse, near Palmerston North; here, also, were organized the N.Z. Field Artillery, the Field and Signal Troops of New Zealand Engineers, the company of Divisional Signallers, and the Mounted Field Ambulance, the men for these units being drawn in proportion from the territorial troops of the four Military Districts. Addington Park, Christchurch, was the rendezvous for the troops of the Canterbury Military District--the Canterbury Mounted Rifles Regiment and the Canterbury Infantry Battalion. The Otago Mounted Rifles Regiment and the Otago Infantry Battalion concentrated in Tahuna Park, near the Ocean Beach, Dunedin. [Illustration: [_From the collection of Sergt. C. B. Gibbs, N.Z.A.O.D._ BADGES OF INFANTRY REGIMENTS THAT SERVED AT SAMOA AND GALLIPOLI. 1st Canterbury Regiment. 6th Hauraki Regiment. 11th Taranaki Rifles Regiment. 16th Waikato Regiment. 2nd South Canterbury Regiment. 7th Wellington West Coast Regiment. 12th Nelson Regiment. 17th Ruahine Regiment. 3rd Auckland Regiment. 8th Southland Regiment. 13th North Canterbury and Westland Regiment. N.Z. Maori Contingent. 4th Otago Regiment. 9th Hawkes Bay Regiment. 14th South Otago Regiment. N.Z. Army Service Corps. 5th Wellington Regiment. 10th North Otago Regiment. 15th North Auckland Regiment. N.Z. British Section. N.Z. Medical Corps.] The territorial system of compulsory training was still in its infancy, but it was considered advisable to retain the territorial distinctions. Each of the four Military Districts was asked to supply one regiment of mounted rifles and one battalion of infantry. Each territorial regiment and battalion supplied to the Expeditionary Force a squadron and a company respectively, and these units retained their badges and the customs of their parent organizations. The organization of the Expeditionary Force was that of the headquarters of a division, divisional troops, a mounted rifles brigade, and an infantry brigade. The Auckland, Wellington, and Canterbury Mounted Rifles Regiment made, with the Field and Signal Troops and Mounted Field Ambulance, a complete mounted brigade. The Otago Mounted Rifles Regiment became divisional cavalry, and did not form part of the brigade. The four infantry battalions--Auckland, Wellington, Canterbury, and Otago--made a complete infantry brigade.