Did South American powers operate submarines during World War II?
Short answerYes; Brazil and Chile are highlighted among navies that used submarines for coastal defense and sea denial.
NotesThe answer recalls an Italian-built Brazilian boat and Chilean H-class submarines, while noting that several South American navies possessed relevant capability. Chile's older British H-class boats demonstrate how long a modest coastal type could remain useful to a smaller operator. Their attraction was straightforward: a submarine acts like a mobile minefield and offers a smaller fleet a credible coastal threat. The examples place South American procurement within the same sea-denial logic used to assess the European minor navies.