The troops which were to form the expedition were mainly drawn from India, and Sir Hope Grant, who had not merely distinguished himself during the Mutiny, but who had served in the first English war with China during the operations round Canton, was appointed to the command of the army; while Admiral Hope, strongly re-enforced in ships, retained the command of the naval forces. A force of five batteries of artillery, six regiments of infantry, two squadrons of cavalry, together with a body of horse and foot from the native army of India, amounting in all to about 10,000 men, was placed at the general's disposal in addition to the troops already in China. The French government agreed to send another army of about two- thirds this strength to co-operate on the Peiho, and General Montauban was named for the command. The collection of this large expedition brought into prominence the necessity of employing as embassador a diplomatist of higher rank than Mr. Bruce; and accordingly, in February Lord Elgin and Baron Gros were commissioned to again proceed to China for the purpose of securing the ratification of their own treaty. Sir Hope Grant reached Hongkong in March, 1860, and by his recommendation a stronger native contingent (one Sikh regiment, four Punjab regiments, two Bombay regiments, one Madras regiment of foot, and two irregular regiments of Sikh cavalry, known as Fane's and Probyn's Horse; Sir John Michel and Sir Robert Napier commanding divisions under Sir Hope Grant) was added, raising the English force in the field to more than 13,000 men. A lease was obtained in perpetuity, through the skillful negotiation of Mr. Parkes, of Kowlun and Stonecutter Island, where, from their salubrious position, it was proposed to place the troops on their arrival from India or England. Chusan was occupied the following month without opposition by an English brigade of 2,000 men.