General De Wet opened his campaign of rebellion on November 7th in an action at Wimburg, where he defeated a smaller force of Loyalists under General Cronje. The decisive battle at Marquard occurred on November 12th, Botha commanding the Loyalists forces in person and De Wet the rebels. The victory of Botha in this fierce engagement was complete. De Wet was routed and was captured on December 1st with a rear-guard of fifty-two men. General Beyers was drowned on December 9th while attempting to escape from the Vall into the Transvaal. This virtually ended all opposition to General Botha. The invasion of German Southwest Africa began on January 5, 1915, and was one uninterrupted chapter of successes. Through jungle and swamp, swept by torrential rains and encountering obstacles that would have disheartened any but the stoutest heart, the little force of invasion swept forward. Most of the engagements by the enemy were in the nature of guerrilla and rear-guard actions. The backbone of the German command was broken and the remaining forces capitulated in July, 1915. With the capitulation came the story of the German mismanagement in Southwest Africa, and particularly their horrible treatment of the Hereros and Hottentots in the country misgoverned by them. An official report fully authenticated was made and none of its essential details were refuted. The report told the story of how the German authorities exterminated the native Hereros. When Germany annexed the country in 1890 they were believed to possess well over 150,000 head of cattle. After the rinderpest scourge of 1897 they still owned something like 90,000 head. By 1902, less than ten years after the arrival of the first German settlers, the Hereros had only 45,898 head of cattle, while the 1,051 German traders and farmers then in the country owned 44,487. The policy of robbing and killing the natives had by that time received the sanction of Berlin. By the end of 1905 the surviving Hereros had been reduced to pauperism and possessed nothing at all. In 1907 the Imperial German Government by ordinance prohibited the natives of Southwest Africa from possessing live stock.