Why did the United States use large cruisers instead of smaller gunboats to resume the Yangtze Patrol after 1945?
Short answerThe deployment appears to have been a deliberate show that the United States had returned after being forced out by Japan, and had returned in strength.
NotesUSS Nashville and USS St. Louis were far larger than conventional Yangtze gunboats, making their selection look impractical if judged only by river-handling requirements. The answer instead reads the deployment as naval diplomacy: sending conspicuous Brooklyn-class light cruisers advertised restored American presence. The exchange demonstrates how the political message of a warship can outweigh its fit for a routine patrol task.