Would the Royal Navy really have attacked Graf Spee inside a neutral port?
Short answerIt might have, then relied on apology, compensation, and maritime leverage to manage the breach of neutrality.
NotesThe Royal Navy might have struck Graf Spee if the ship remained in neutral Montevideo while a carrier force arrived. Aircraft could attack the illuminated, stationary target, after which Britain might argue that Uruguay had been unable to enforce the departure deadline. The diplomatic aftermath would involve apology and compensation rather than advance permission, backed by Britain's maritime leverage and Uruguay's interest in continued trade. This is a counterfactual assessment of likely British behavior, not a claim that such an attack occurred.