opponents. They were immediately arrested for treason. Shortly thereafter, Cox utilized his good relationship with Ibn Saud at Uqair to establish the boundaries between the Saudi kingdom, Iraq, and Kuwait in order to ensure that Britain would not have to defend Iraq from the Saudis. He was appointed GCMG. In her letters, the famed adventurer, archaeologist, and author Gertrude Bell writes of the effectiveness of Cox's diplomacy: "Ibn Saud is convinced that the future of himself and his country depends on our goodwill and that he will never break with us. In point of fact the treaty is on exactly the lines that Sir Percy stipulated." This was to be Cox's final significant act as High Commissioner since he retired on 4 May 1923 and was succeeded by Sir Henry Dobbs, High Commissioner to the Kingdom of Iraq until 1929. He received a roving commission to be Plenipotentiary in the negotiations with Turkey over the border with northern Iraq. There was a great deal of animosity. The Turks resented British censoriousness over the alleged Armenian massacres of 1919, and the fate of the Kurds in Eastern Anatolia. Cox though was in contact with Halil Beg Bedir Khan and members of the Society for the Rise of Kurdistan and argued the Kurdish demands should be considered as well. The following year he was the Plenipotentiary at the Geneva Conference. He worked with Lloyd George in May 1925 framing the legal parameters for illegal arms shipments known as the Convention for Control of Arms Traffic. Oxford university awarded an Honorary Doctorate of Civil Laws in 1925, and then four years later Manchester university granted an Honorary Doctorate of Law. Relationship with Gertrude Bell Throughout his career in Iraq, Cox was in close connection with his aforementioned colleague Gertrude Bell. Their relationship seems unambiguously to be one of mutual admiration and respect. In her writing, Bell describes Cox as possessing an "air of fine and simple dignity," praising his "kindness and consideration," and claiming that his disposition towards her amounted to "an absurd indulgence." Bell describes Cox's political and diplomatic prowess, calling him "a master hand at the game of politics." She notes the respect that he enjoyed with the peoples of Iraq and when writing about Cox's dealings with Ibn Saud even declares, "It's really amazing that anyone should exercise influence such as his…I don't think that any European in history has