This was a U-boat small-scale campaign based on the use of single boats rather than wolfpacks against Allied shipping, especially oil tankers and aluminium ore transport vessels, crossing the Caribbean Sea (16 February/18 March 1942).
The undertaking comprised a number of simultaneous attack on the oil loading facilities at Aruba in the Netherlands Antilles by U-156, Curaçao in the Netherlands Antilles by U-67, and Maracaibo in Venezuela by U-502 during 16 February. On 19 February there was an attack on Port of Spain in Trinidad by U-161, and on 10 March on Port Castries in St Lucia where a ship was torpedoed alongside a pier. U-129 operated along the coast of Guiana, and was followed by the other U-boats after they had completed their raids in the Caribbean.
In overall terms the U-boats achieved the following results: in the Caribbean Kapitänleutnant Günther Müller-Stöckheim’s U-67 sank two tankers (17,903 tons) and damaged another, Kapitänleutnant Werner Hartenstein’s U-156 sank five ships (22,723 tons) and damaged two tankers, Kapitänleutnant Albrecht Achilles’s U-161 sank four ships (26,903 tons) as well as the US Coast Guard vessel Acacia and damaged four ships in port, Kapitänleutnant Jürgen von Rosenstiel’s U-502 sank five tankers (25,398 tons) and damaged one tanker, and off the coast of Guiana Kapitänleutnant Asmus Nicolai Clausen’s U-129 sank seven ships (25,613 tons).