On the other hand, Sharpe felt satisfied with the Kazembe and Nsama agreements in his pocket. He wrote to Johnston from Bunkeya on 15 November 1890 saying there was no fear of Msiri giving concessions or treaties to anyone else, and in any case if they sent a well-armed column of perhaps 150 men to Katanga they could take over Msiri's copper and mineral trade without hindrance. On 26 December 1890 he wrote to Johnston again from Lake Tanganyika saying that Msiri would not last long and they could then acquire 'all his country'. Furthermore, he noted that as Kazembe was the rightful owner of Msiri's country, the Kazembe treaty effectively gave them all the 'Lunda country' (by which he included Msiri's territory comprising the south-east of present-day Katanga).