The Lackawanna Conference, held on a U.S. ship, attempted to end this conflict, but was ended by extortion raids by Patricio Lynch showing one side's complete dominance.  
General Juan Buendia defeated Luis Arteaga near Tarapaca in this conflict, and two countries' land armies were completely destroyed at the Battle of the Halt of Alliance during this war.  The Lackawanna Conference, held on a U.S. ship, attempted to end this conflict, but was ended by extortion raids by Patricio Lynch showing one side's complete dominance.  The Cochrane and the Blanco Encalada were one side's main (*) vessels, while the other side lost its main ship, the Huascar, after the Battle of Punta Angamos. The losing side ceded Antofagasta, Arica, and Tacna to its southern neighbor in the Treaty of Ancon at this conflict's close.  For 10 points, name this 1879 South American war that saw Chile defeat Peru and Bolivia along a namesake body of water.
General Juan Buendia defeated Luis Arteaga near Tarapaca in this conflict, and two countries' land armies were completely destroyed at the Battle of the Halt of Alliance during this war.  
{War of the Pacific}