I say it would be the end of the USD, the core of the US is the USD, thus the end of US. China would suffer greatly as a result of it, but would survive it, US will not be able to survive it in anyway. http://en.wikipedia.org/wiki/Suez_Crisis#Financial_pressure "Eisenhower in fact ordered his Secretary of the Treasury, George M. Humphrey, to prepare to sell part of the US Government's Sterling Bond holdings. The US Government held these bonds in part to aid post war Britainâs economy (during the Cold War), and as partial payment of Britainâs enormous World War II debt to the US Government, American corporations, and individuals. It was also part of the overall effort of Marshall Plan aid, in the rebuilding of the Western European economies. Britain's then Chancellor of the Exchequer, Harold Macmillan, advised his Prime Minister, Anthony Eden, that the United States was fully prepared to carry out this threat. He also warned his Prime Minister that Britain's foreign exchange reserves simply could not sustain the devaluation of the pound that would come after the United States' actions; and that within weeks of such a move, the country would be unable to import the food and energy supplies needed simply to sustain the population on the islands. Furthermore, in concert with U.S. actions Saudi Arabia started an oil embargo against Britain and France. The U.S. refused to fill the gap until Britain and France agreed to a rapid withdrawal. The other NATO members refused to sell oil they received from Arab nations to Britain or France."