Panama crisis of 1885
In 1846, the Mallarino–Bidlack Treaty was signed by the Republic of New Granada (Colombia and Panama) and the United States, obligating the United States to maintain "neutrality" in the Colombian state of Panama in exchange for transit rights in the isthmus on behalf of Colombia.
Chile's influence in the region followed its victory in the War of the Pacific. During the war, Chile had defeated Bolivia and Peru and gained large swathes of territory from both, removing Bolivia's access to the sea. U.S. sympathies were with Bolivia and Peru, and Chile rejected American attempts at mediation. A Peruvian attempt to cede a naval base to the U.S. in Chimbote Bay in 1881 was blocked when Chile, learning of the deal, sent marines to occupy Chimbote.
In March 1885 Colombia thinned its military presence in Panama by sending troops stationed there to fight rebels in Cartagena. These favourable conditions prompted an insurgency in Panama. The United States Navy was sent there to keep order, in light of invoking its obligations according to the treaty being signed in 1846.
On 7 April, the screw sloop USS Shenandoah arrived in Panama City and three days later, other American ships started arriving in Colón, Panama. On 27 April a force of marines was landed in Panama City to help suppress rebels who had taken over the city when local troops had moved out to deal with a revolt in Colón. The next day, federal troops from Colombia arrived from Buenaventura, Colombia's nearest Pacific port. By this time, there was also a small force of the National Army of Colombia supported by a strong contingent of American troops in Colón.
In response to the American intervention, Chile sent the protected cruiser Esmeralda to Panama City, arriving on April 28. The Esmeralda's captain was ordered to stop by any means an eventual annexation of Panama by the United States. According to a U.S. publication in August 1885, right after the Panama events, "[The Esmeralda] could destroy our whole navy, ship by ship and never be touched once."
By the time the Chileans had arrived, however, the situation in Panama had been settled. The Americans withdrew from Panama City, to be occupied by the Colombian government on 30 April. Whether or not the Chilean actions affected American decisions is uncertain.
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- Tromben, Captain Carlos (April 2002). "Naval Presence: The Cruiser Esmeralda in Panama" (PDF). International Journal of Naval History. 1 (1).<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- William Sater, Chile and the United States: Empires in Conflict (Athens, GA: University of Georgia Press, 1990), 52. ISBN 0-8203-1249-5.