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Clayton–Bulwer Treaty signed by US and Great Britain

When
1850
Where
Washington, D.C.
Episodes
1

The Clayton–Bulwer Treaty, signed on April 19, 1850, established neutral control over a proposed Nicaragua canal. Negotiated by US Secretary of State John M. Clayton and British Minister Sir Henry Bulwer, the agreement aimed to resolve tensions over Central American influence and prevent war by prohibiting exclusive canal construction or fortification by either nation.

Episodes

  1. 19 April 1850 · Washington, D.C.Signing of the Treaty

    John M. Clayton and Sir Henry Bulwer signed the treaty on April 19, 1850, to resolve tensions over a proposed Nicaragua canal.

Background and detail

Background. Growing tensions existed between the United States and Great Britain over Central America, where British influence was strong but American expansion was increasing. The treaty addressed American plans to construct a Nicaraguan Canal connecting the Pacific and Atlantic oceans. It was instrumental in preventing war by resolving these specific diplomatic conflicts regarding canal construction and regional control.

Key Provisions. The treaty contained three main provisions: neither nation could build a canal without the other's consent; neither could fortify or found new colonies in the region; and any canal built would be guaranteed as neutral for all shipping. These terms aimed to prevent exclusive ownership or control by either power over the proposed waterway.

Ratification and Declarations. Signed on April 19, 1850, the treaty was ratified by both governments. Before the exchange of ratifications, British Foreign Minister Lord Palmerston directed Bulwer to declare that the treaty did not apply to British Honduras. Clayton issued a counter-declaration regarding the Mosquito Coast and Bay Islands, noting these declarations did not affect the treaty's legality.

Sources

  1. Clayton–Bulwer Treaty Wikipedia, revision of 2026-08-08

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.