Editing Second Opium War (section)

===Intervention of the US and Russia===
The United States and Russia sent envoys to Hong Kong to offer military help to the British and French, though in the end Russia sent no military aid.<ref name=":0">{{Cite web|url=https://www.mtholyoke.edu/~goldf20s/politics116/secondwar.html|title=Opium Wars|website=www.mtholyoke.edu|access-date=2018-09-04|archive-date=19 October 2017|archive-url=https://web.archive.org/web/20171019111935/https://www.mtholyoke.edu/~goldf20s/politics116/secondwar.html|url-status=dead}}</ref>

The U.S. was involved in a minor concurrent conflict during the war, though it ignored the UK's offer of alliance and did not coordinate with the Anglo-French forces. In 1856, the Chinese garrison at [[Guangzhou|Canton]] shelled a [[United States Navy]] steamer,<ref name=MJ/> and the U.S. Navy retaliated in the [[Battle of the Pearl River Forts]]. The ships bombarded then attacked the river forts near Canton, taking them. Diplomatic efforts were renewed afterwards, and the American and Chinese governments signed an agreement for U.S. neutrality in the Second Opium War.{{citation needed|date = September 2015}}