Privateer incursion of the Los Andes On April 25, 1819,
Los Andes sailed from
Valparaiso with the purpose of harassing the royalists in the
Pacific. The ship was commanded by Captain Juan Illingworth, a British sailor in the service of Chile. From October of that year until March 1820, he harassed the
Pacific coast of New Granada to support General
Simón Bolívar to gain control of the territory. Their attacks were concentrated in the towns of the
coast of Popayán and in the
valley of Cauca. He defeated the royalist detachments and left the territory under revolutionary authority. In the midst of these circumstances, on April 22, 1820, a convoy commanded by Commodore Antonio Vacaro sailed from Callao to
Guayaquil, bringing a battalion to reinforce the place. This naval force was formed by the frigate
Prueba (flagship), the brig
Maypú and the transport
Javiera. On May 1, the convoy arrived at the site and Vacaro had news of the Chilean ship on those coasts. ==Previous movements==