Ever since the British conquest, the Peshawar valley had been harassed by the same mountain tribes that had worried the Macedonians, the Mohammedans, and the Sikhs under Runjeet Singh. Tribes living within the circle of British outposts could be compelled to live in peace; but tribes living beyond the border, and outside British influence, were turbulent, murderous and predatory. Occasionally they assassinated a British officer, or gave an asylum to criminals, or committed raids on British territory or on tribes living under British protection, and not unfrequently stole horses and other property from the British cantonment. All this while they were strictly forbidden to cross the border into British territory; and any tribesman who dared to disobey this law, was liable to arrest and imprisonment until the elders of his tribe made their submission and paid a fine. [Sidenote: Peshawar cantonment.] The valley of Peshawar was held by 9,000 Bengal sepoys and about 3,000 Europeans. Here, as at Lahore, there was a perpetual fear of mutiny and murder. A secret enemy was dwelling in the British camp that was capable of any amount of secrecy and treachery. Accordingly the cantonment was declared in a state of siege. The Europeans took up strong positions, and some of the Bengal regiments were disarmed. [Sidenote: Mutiny and murder.] §16. Towards the end of May a sepoy regiment rose against its officers. The colonel had staked his life on the fidelity of his men, and they had not been disarmed; and owing to this infatuated belief in the fidelity of the sepoys, the rebels had been able to set out for Delhi with their arms and ammunition. The colonel was in the ranks to the last, labouring to keep the men to their colours; but his efforts were vain, and he retired broken-hearted and shot himself. The rebels, however, were pursued and scattered, by the flying column under Neville Chamberlain, and 120 were taken prisoners and brought back to Peshawar. [Sidenote: Executions at Peshawar.] The prisoners were tried for mutiny and were all condemned to death. But John Lawrence recoiled from such wholesale executions. He did not want to exact vengeance on the mutineers, but to terrify other regiments from following their example. Forty of the worst were sentenced to death, but the remaining eighty were imprisoned for periods varying from three to seven years. The condemned forty were blown from guns at Peshawar on the 10th of June. [Sidenote: Volunteering of Sikhs and tribes.]