In 1836 Urquhart returned to Constantinople as secretary of the embassy. His growing fame and influence in British diplomatic and political circles had forced Palmerston to bring him back into office, although his role in the Turkish capital was rather limited. Once again, Urquhart took up the Circassian cause and attempted to stir up a conflict between Russia and Britain. In his most brazen act yet, Urquhart conspired to send a British schooner, the Vixen, to Circassia in deliberate contravention of the Russian embargo against foreign shipping on the eastern Black Sea coast imposed as part of the Treaty of Adrianople. The Vixen belonged to a shipping company, George and James Bell of Glasgow and London, that had already clashed with the Russians over their obstructive quarantine regulations on the Danube. Officially, the Vixen was transporting salt, but in fact it was loaded with a large supply of weapons for the Circassians. Ponsonby in Constantinople had been informed of the ship’s intended journey and did nothing to discourage it; nor did he reply to the Bells’ enquiries about whether the Foreign Office recognized the embargo and whether Britain would defend their shipping rights, as Urquhart had assured them that it would. The Russians were aware of Urquhart’s plans: in the summer of 1836 the Tsar had already complained to the British ambassador in St Petersburg after one of Urquhart’s followers had travelled to Circassia and promised British support for their war against Russia. The Vixen sailed in October. As Urquhart had anticipated, a Russian warship seized the Vixen on the Caucasian coast, at Soujouk Kalé, prompting loud denunciations of the Russian action and calls for war in The Times and other newspapers. Ponsonby urged Palmerston to send a fleet into the Black Sea. Although he was reluctant to recognize Russia’s embargo or its claims to Circassia, Palmerston was nevertheless not ready to be pushed into a war by Urquhart, Ponsonby and the British press. He acknowledged that the Vixen had contravened Russian regulations, which Britain recognized, but only in so far as these related to Soujouk Kalé, not to the whole Caucasian coastline.
Recalled once again from Constantinople, Urquhart was dismissed from the foreign service and charged with a breach of official secrecy by Palmerston in 1837. Urquhart always claimed that Palmerston had known about the Vixen plan. For years he harboured a deep grudge against the Foreign Secretary for supposedly betraying him. As Britain moved towards entente with Russia, Urquhart became increasingly frustrated and extreme in his Russophobia, calling for an even stronger anti-Russian line – not discounting war – to defend Britain’s trade and its interests in India. He even accused Palmerston of being in the pay of the Russian government, a charge taken up by his supporters in the press, including in The Times, a major influence on middle-class opinion, which joined the Urquhart camp in opposition to the ‘pro-Russian’ foreign policy of Palmerston. In 1839 a long series of letters to The Times by ‘Anglicus’ – a pseudonym of Henry Parish, one of Urquhart’s acolytes – almost took on the status of editorials, warning of the dangers of any compromise with an empire bent on the domination of Europe and Asia.
Urquhart continued his attacks on Russia in the House of Commons, to which he was elected in 1847 as an independent candidate (taking as his colours the green and yellow of Circassia). By this time Palmerston was the Foreign Secretary in Lord John Russell’s Whig administration, which took office in 1846, following the split of the Conservatives over the repeal of import tariffs on cereal products (the Corn Laws). Urquhart renewed his charges against him. In 1848 he even led a campaign to impeach Palmerston for his failure to pursue a more aggressive policy against Russia. In a five-hour speech in the House of Commons, Urquhart’s main ally, the MP Thomas Anstey, accused him of a shameful foreign policy that had endangered Britain’s national security by failing to defend the liberty of Europe against Russian aggression – in particular, the constitutional liberties of Poland, whose maintenance had been made a condition for the transfer of the Polish kingdom to the Tsar’s protection by the other powers at the Congress of Vienna in 1815. Russia’s brutal crushing of the Warsaw uprising in 1831 had obliged Britain to intervene in Poland in support of the rebels, even at the risk of a European war against Russia, Anstey maintained. In self-defence, Palmerston explained why it had been unrealistic to take up arms in favour of the Poles, while laying out the general principles of liberal interventionism which he would call on again when Britain entered the Crimean War:
