On the 22nd August, 1914, Lieutenant Horn, of the _Moewe_, commanding the small armed steamer _Hedwig von Wissmann_, fought a successful action against the Belgian steamer _Delcommune_. The captain of the _Moewe_, Lieutenant-Commander Zimmer, had gone to Kigoma with his crew, after destroying his ship, which had been blown up in August, 1914. The steamer _Kingani_, which had also been transported to the same place by rail from Dar-es-Salaam, and several smaller craft on Lake Tanganyika, were then armed and put in commission by Lieutenant-Commander Zimmer. He also mounted a 3·5-inch naval gun on a raft and bombarded a number of Belgian stations on the shore. He strongly fortified Kigoma itself, and developed it into a base for naval warfare on Lake Tanganyika. On the 20th November, 1914, the Bismarckburg Detachment (half company), co-operating with the small armed steamers _Hedwig von Wissmann_ and _Kingani_, drove off a Belgian company in the bay west of Bismarckburg, captured four ·43-inch machine guns and over ninety miles of telegraph wire, which was used to continue the line Kilossa-Iringa up to New Langenburg, a work which was, from a military point of view, extremely urgent. Early in October attempts were made to complete the destruction of the Belgian steamer _Delcommune_, which was lying at Baraka, on the Congo shore, but without success. After bombarding her once more on the 23rd October, Captain Zimmer looked upon her as permanently out of action. On the 27th February, 1915, the crew of the _Hedwig von Wissmann_ surprised a Belgian post at Tombwe, and captured its machine gun. One Belgian officer and ten Askari were killed, one severely wounded Belgian officer and one Englishman were captured. We had one Askari killed, one European mortally wounded, one Askari severely wounded. In March, 1915, the Belgians made arrests on a large scale in Ubwari, the inhabitants of which had shown themselves friendly to us, and hanged a number of people. According to wireless messages which we took in, several Belgian whale-boats were got ready on Lake Tanganyika during June, and work was being carried on on a new Belgian steamer, the _Baron Dhanis_. On our side the steamer _Goetzen_ was completed on the 9th June, 1915, and taken over by the Force. She rendered good service in effecting movements of troops on Lake Tanganyika. The Police at Bismarckburg, under Lieutenant Haun of the Reserve, the capable administrator of the Baziots, had joined the Protective Force. Several skirmishes took place in hostile territory, and in this district also the enemy was, on the whole, kept successfully at a distance. It was not till early in February, 1915, that several hundred hostile Askari invaded Abercorn, and some of them penetrated to near Mwasge Mission, but then retired.