1932, and after publicly rebuking Teymourtash for his failure to secure an agreement, dictated a letter to cabinet canceling the D'Arcy Agreement. The Iranian Government notified APOC that it would cease further negotiations and demanded cancellation of the D'Arcy concession. Rejecting the cancellation, the British government espoused the claim on behalf of APOC and brought the dispute before the Permanent Court of International Justice at The Hague, asserting that it regarded itself "as entitled to take all such measures as the situation may demand for the Company's protection." At this point, Hassan Taqizadeh, the new Iranian minister to have been entrusted the task of assuming responsibility for the oil dossier, was to intimate to the British that the cancellation was simply meant to expedite negotiations and that it would constitute political suicide for Iran to withdraw from negotiations. Rezā Shāh was removed from power abruptly during the Anglo-Soviet invasion of Iran during World War II. The new Shah, Crown Prince Mohammad Reza Pahlavi, signed a Tripartite Treaty Alliance with Britain and the Soviet Union in January 1942, to aid in the allied war effort in a non-military way. In 1951, the Iranians nationalized the oil under the leadership of democratically elected prime minister Mohammad Mosaddegh. This caused a lot of tension between Iran and the UK. According to the book All the Shah's Men, the British tried to convince Harry S. Truman to join their campaign against Iran. However, it was only when Dwight Eisenhower became the president that British succeeded in convincing U.S. to join their plot. In order to convince the Eisenhower administration Woodhouse shaped his appeal around the rhetoric of anti-communism. They pointed out the Tudeh party could take control of Iran. Eventually British and CIA created a plan code-named Operation Ajax to overthrow the democratically elected Mosaddegh. The coup was performed by Central Intelligence Agency field commander Kermit Roosevelt Jr. (grandson of Theodore Roosevelt). After the coup, scores of Iranian political activists from the National and Communist parties were jailed or killed. This coup only added to the deep mistrust towards the British in Iran. It has since been very common in Iranian culture to mistrust British government; a good example is the character of Uncle in the television show My Uncle Napoleon. The end of World War II brought the start of American dominance in Iran's political arena, and with an anti-Soviet Cold War brewing,