Damaged Cargo Ship
From Captain of Industry Wiki
Damaged Cargo Ship is a World Map location. When first explored, the map icon for this location is a tinted red and named "Location With Enemy". After successfully defeating the enemy, the icon turns blue and the location becomes repairable. Once the location is repaired a Cargo Ship is claimed and the location itself turns into a Fully Explored location.
Discovering a Damaged Cargo Ship on the The World Map is a requirement for Cargo Depot research.