Five days afterwards, the EIGHTEENTH embarked from Ningpo, and sailed up the river to attack the enemy's posts. On the 15th of March they were engaged at _Tsekee_, and the heights of _Segaon_, which were captured; and the ROYAL IRISH also took part in forcing the _Chankee-pass_: they returned to Ningpo on the 17th of March. Three companies of the EIGHTEENTH were withdrawn from Koolangsoo at the end of March, and proceeded in a steam-vessel to Ningpo, to reinforce the garrison: in April two companies proceeded from Ningpo to Chinhae. One company was afterwards withdrawn from Chinhae and five from Ningpo, to take part in the expedition against the fortified city of _Chapoo_, under the command of Lieut.-Colonel Tomlinson. A landing was effected on the 18th of May; British prowess was again conspicuous, and the EIGHTEENTH were distinguished for their heroic bearing at the attack and capture of this place, on which occasion Lieut.-Colonel NICHOLAS R. TOMLINSON fell at the head of the regiment, "in full career of renown, honoured by the corps, and lamented by all."[33] The loss of the regiment at the capture of this place was Lieut.-Colonel Tomlinson, one serjeant, and three rank and file killed; Lieutenants Edward Jodrell and Alexander Murray, one serjeant, one drummer, and twenty-seven rank and file wounded. Major Jeremiah Cowper was promoted to the rank of Lieut.-Colonel on the 19th May, 1842, in succession to Lieut.-Colonel Tomlinson; and Brevet Major John Grattan received the Majority. These brilliant successes had taught the Chinese the true character of British skill, spirit of enterprise, and valour, yet, with unaccountable infatuation, the authorities of the "Celestial empire" still looked for success, and their resistance gave the EIGHTEENTH opportunities of gaining additional honours. In June six companies of the regiment were employed in an expedition up the Yangtse-Keang river, and took part in the capture of the fortified post of _Woosung_, and also in the capture of _Poonshau_; they afterwards advanced against the city of _Shanghae_, which was taken possession of without opposition.