The United Kingdom announced the expulsion of a Russian diplomat on Monday, marking a retaliatory response to Moscow's expulsion of a British diplomat last month. According to Jin10, the Russian government had accused the British diplomat of being an 'undeclared spy,' a claim that the UK dismissed as 'baseless.' This exchange is part of ongoing tensions between Russia and Western nations, with accusations of unprecedented espionage activities reminiscent of the Cold War era. Western diplomats have reported experiencing intrusive surveillance and harassment in Moscow. A spokesperson for the UK Foreign Office stated that any further actions by Russia would be considered escalatory and would prompt a corresponding response.