The advance from the south along the Luderitzbucht-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 10th) 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. The stiffest fighting in all Africa came in German East Africa. It began in late September, 1914, and continued until mid-June, 1915. The Germans, curiously enough, commenced the offensive here with an attack upon Monbasa, the terminus of the Uganda railway and the capital of British East Africa. The attack was planned as a joint naval and military operation, the German cruiser Koenigsburg being assigned to move into the harbor and bombard the town simultaneously with the assault by land. The plan went awry when the presence of British warships frightened off the Koenigsburg. The land attack was easily checked by a detachment of the King's African Rifles and native Arabian troops until the detachments of Indian Regulars arrived upon the scene. The enemy thereupon retreated to his original plans. British reprisals came early in November, when the towns of Tanga and Gassin were attacked by British troops. The troops selected for this adventure numbered 6,000 and carried only food, water, guns and munitions. No protection of any kind nor any other equipment was taken by the soldiers. Reinforcements to the German forces delayed the capture of Gassin until January. A garrison of three hundred men was left there and this in turn was besieged by three thousand Germans. After a stubborn defense the Germans recaptured the town. A union of two British forces was accomplished early in June, 1915. One of these cut through German East Africa along the Kagera River and the other advanced on steamers from Kisumu. They met the enemy on June 22d and defeated it with heavy casualties. Later General Tighe, commanding the combined British forces, was congratulated on the completeness of his victory on June 28th, by General Kitchener.