The particular Asian nation the Nixon Doctrine was aimed at with its message that Asian nations should be responsible for defending themselves was South Vietnam, but Shah Mohammad Reza Pahlavi of Iran seized upon the Nixon Doctrine with its message that Asian nations should be responsible for their own defense to argue that the Americans should sell him arms without limitations, a suggestion that Nixon eagerly embraced. The US turned to Saudi Arabia and Iran as "twin pillars" of regional stability. Oil price increases in 1970 and 1971 would allow funding both states with this military expansion. Total arms transfers from the United States to Iran increased from $103.6 million in 1970 to $552.7 million in 1972; those to Saudi Arabia increased from $15.8 million in 1970 to $312.4 million in 1972. The United States would maintain its small naval force of three ships in the Gulf, stationed since World War II in Bahrain, but would take on no other formal security commitments.