The Treaty of Hünkâr İskelesi (once commonly spelled Unkiar Skelessi, and translating to The Treaty of "the Royal Pier" or "the Sultan's Pier") was a treaty signed between the Russian Empire and the Ottoman Empire on July 8, 1833, following the military aid of Russia against Muhammad Ali Pasha of Egypt that same year. The treaty brought about an alliance between the two powers, as well as a guarantee that the Ottomans would close the Dardanelles to any foreign warships if the Russians requested such action. The treaty would have significant consequences regarding the Ottoman Empire's foreign relations, especially with Great Britain and Ireland, as the terms of the treaty worried the other great powers of Europe.
Background Mehmed Ali, ostensibly only a vassal of the Ottoman Empire, was seeking to increase his personal power and gain control over Palestine, Syria, and Arabia. In order to justify the assault on his liege, he used the pretext of a personal dispute with the pasha of Acre.
Egyptian advance In late 1831, he sent his newly reformed army towards Syria, under the command of his son Ibrahim Pasha, resulting in the Egyptian–Ottoman War (1831–1833) against the Ottoman sultan, Mahmud II. Ibrahim's forces quickly captured Gaza and Jerusalem, and successfully laid siege to Acre before marching on to Aleppo and Damascus, “winning successive battles against Mahmud’s new troops, which were not yet a match for so practiced an enemy”; by June 18, 1832, Ibrahim had managed to seize control of all of Syria. For a time, the Egyptian army halted while Mehmed Ali attempted to negotiate with the Sultan. However, once it became clear that diplomacy had failed, Ibrahim led his forces into Anatolia itself where he rallied opponents of the Sultan and captured the city of Konya on November 21. Mahmud II dispatched a large army to try to halt the Egyptian advance, but it was crushed in the Battle of Konya on December 21 and “in a single blow [opened] the way for a complete conquest of Anatolia.” Ibrahim continued his advance until he was within striking distance of Istanbul, the Ottoman capital.
Response Panic spread through the imperial city as the Egyptian army pushed closer to the seat of Ottoman authority. Mahmud II urgently dispatched pleas for assistance to both Britain and France, but was turned down due to domestic concerns as well as the involvement of both nations in managing the state of affairs after the recently ended Belgian Revolution. Lord Kinross argues that this left the Sultan no choice but to call upon his former enemy, Russia, for assistance. According to Bailey, the response from the Tsar was so positive and swift, that Mahmud II hesitated in accepting, believing it might be a trap. Nevertheless, the Sultan was willing to welcome any help he could receive, and accepted the Russian offer. The Tsar immediately dispatched a sizeable force of troops to block the potential Egyptian advance on Istanbul. It is unclear exactly how many troops the Tsar sent; Lord Kinross claims it was an army of approximately 18,000 men in total while Bailey suggests it may have been a force more than twice that size of nearly 40,000 troops. Regardless of the exact size of the Russian host, it was formidable enough to cause Ibrahim to decide to begin negotiating with the Sultan rather than risk a battle with the Russians. Thus, the mere presence of Russian troops was enough to halt the Egyptian onslaught.
European reaction The presence of Russian troops so close to the Ottoman capital also worried Britain and France considerably. Seeing this potential threat forced the two nations into action. Lord Palmerston, the British Foreign Secretary, led the effort and brought strong diplomatic pressure “to bear upon the Sultan to insist on the Russian withdrawal, in return for concessions to Mehmed Ali and an Anglo-French guarantee against his further invasion.” Diplomacy was not the only tool they employed however, as both the British and the French dispatched fleets to the Dardanelles. This action served the dual purpose of coercing the Sultan to accept their demanding proposal, while also threatening the Russians and checking any further military action they might take.
Consequences of the conflict and intervention The Sultan finally submitted, which led to the Convention of Kütahya in May 1833, which officially granted Mehmed Ali control of Syria, Adana, Tripoli, Crete, and Egypt, though these titles were not guaranteed to be hereditary upon his death. As soon as this peace was established, the Russians began the process of removing their troops from Ottoman territory. It seemed as though things had come to a reasonable end, but soon after the withdrawal of all Russian troops, the British government learned that two days prior to the completion of this evacuation, the Sultan Mahmud II had signed the Treaty of Hünkâr İskelesi with Tsar Nicholas I. This realization alarmed British leaders, as it seemed to indicate that Russia now held an enormous amount of influence over the Ottoman Empire and its affairs.
Treaty The quickly negotiated treaty, signed on July 8, 1833, consisted primarily of a defensive alliance between Russia and the Ottoman Empire which was to initially last for eight years, and included pledges to discuss matters of security with one another. This bound the two empires together in a significant way and seemed to give the Russians the opportunity for future military interventions in the Ottoman Empire, effectively making it a protectorate of the Russian state. While this portion of the treaty was itself important, the most significant feature was its secret article.
Secret Article
This article called for an alternative to Ottoman military support per the terms of the treaty; rather than sending troops and arms in support of their Russian allies, the Ottomans would close the Dardanelles to all foreign warships at Russia's command. Below is the full text of the secret article:
… excerpt ends here. Continue reading the full article.

