The occupation of Windhoek was effected by General Botha's North Damaraland forces working along the railway from Swakopmund. At the former place General Vanderventer joined up with General Botha's forces. The force from Swakopmund met with considerable opposition, first at Tretskopje, a small township in the great Namib Desert fifty miles to the northeast of Swakopmund, and secondly at Otjimbingwe, on the Swakop River, sixty miles northwest of Windhoek.
The theatre of operations in German South West Africa.
Apart from these two determined stands, however, little other opposition was encountered, and Karibib was occupied on May 5 and Okahandja and Windhoek on May 12. With the fall of the latter place 3,000 Europeans and 12,000 natives became prisoners.
The wireless station—one of Germany's most valuable high-power stations, which was able to communicate with one relay only with Berlin—was captured almost intact, and much rolling stock also fell into the hands of the Union forces.
The advance from the south along the Lüderitzbucht-Seeheim-Keetmanshoop Railway, approximately 500 miles in length, was made by two forces which joined hands at Keetmanshoop. The advance from Aus (captured on April 1) was made by General Smuts's forces. Colonel (afterward General) Vanderventer, moving up from the direction of Warmbad and Kalkfontein, around the flanks of Karas Mountain, pushed on after reaching Keetmanshoop in the direction of Gibeon. Bethany had previously been occupied during the advance to Seeheim. At Kabus, twenty miles to the north of Keetmanshoop, and at Gibeon pitched battles were fought between General Vanderventer's forces and the enemy. No other opposition of importance was encountered, and the operations were brought to a successful conclusion at Windhoek.
A part of the German forces had retreated to the northward, intending to carry on guerrilla warfare in the hills. General Botha went in pursuit. A Reuter's telegram, dated June 26, announced that Otjivarongo, approximately 120 miles north of Karibib, on the Otavi Railway, was occupied on that day by General Botha, the enemy having retired northward during the previous night. General Botha's movements have again been characterized by rapid and extraordinary marching through dense bush country, which is almost waterless. The retirement of the enemy was more suggestive of a flight than a strategic retreat.
A telegram from Lord Buxton, the Governor General of the Union of South Africa, to the Secretary of State for the Colonies, concludes the story:
This morning, July 9, General Botha accepted from Governor Seitz the surrender of all the German forces in Southwest Africa. Hostilities have ceased and the campaign has thus been brought to a successful conclusion.