With the Mexican–American War concluded, the new US delegate in Central America, E. G. Squier, tried to get Nicaragua, El Salvador and Honduras to form a common front against the British, who were now threatening to annex Tiger Island ("El Tigre") in Honduras' Pacific coast. After British and American forces nearly clashed in El Tigre, both governments reprimanded the commanders of their forces there and concluded the Clayton–Bulwer Treaty on April 18, 1850. In this document the two powers pledged themselves to guarantee the neutrality and equal use of the proposed canal, and to not "occupy, or fortify, or colonize, or assume or exercise any dominion over Nicaragua, Costa Rica, the Mosquito Coast or any part of Central America", nor make use of any protectorate or alliance, present or future, to such ends.