In retribution for the murder of Macnaghten, the great bazaar of Cabul, where his remains had been dishonoured, was destroyed by Pollock; the British force was then withdrawn.

Dost Mahommed made himself again ruler of Cabul, and a proclamation of Lord Ellenborough announced that the British Government accepted any Sovereign and Constitution approved by the Afghans themselves.
In China, also, operations were successfully terminated, Chapoo being taken in May, and an attack by Admiral Parker upon Nanking being only averted by the conclusion of a favourable treaty, involving an indemnity, the cession by China of Hong Kong, and the opening of important ports to commerce.
A dispute had arisen between this country and the United States as to the boundary line between the latter country and the British Possessions in North America.

Lord Ashburton was accordingly sent out on a special mission to effect the adjustment of this and other disputes, and a treaty was concluded for the purpose of defining each country's territorial rights, and imposing mutual obligations for the suppression of the Slave Trade..