Seventeen U.S. Navy warships, under the command of William Shubrick, depart from Uruguay on December 30, 1858, on a mission to seek redress from Paraguay for the shelling of the Water Witch in 1855, which had resulted in the death of the ship's helmsman.
U.S. President James Buchanan appointed former U.S. Representative James B. Bowlin of Missouri as the American commissioner to conduct the negotiations.