crisis; when Israel gained the upper hand, Egyptian President Sadat requested a joint U.S.–USSR peacekeeping mission, which the U.S. refused. When Soviet Premier Brezhnev threatened to unilaterally enforce any peacekeeping mission militarily, Nixon ordered the U.S. military to DEFCON3, placing all U.S. military personnel and bases on alert for nuclear war. This was the closest the world had come to nuclear war since the Cuban Missile Crisis. Brezhnev backed down as a result of Nixon's actions. Because Israel's victory was largely due to U.S. support, the Arab OPEC nations retaliated by refusing to sell crude oil to the U.S., resulting in the 1973 oil crisis. The embargo caused gasoline shortages and rationing in the United States in late 1973, and was eventually ended by the oil-producing nations as peace in the Middle East took hold. After the war, and under Nixon's presidency, the U.S. reestablished relations with Egypt for the first time since 1967. Nixon used the Middle East crisis to restart the stalled Middle East Peace Negotiations; he wrote in a confidential memo to Kissinger on October 20: I believe that, beyond a doubt, we are now facing the best opportunity we have had in 15 years to build a lasting peace in the Middle East. I am convinced history will hold us responsible if we let this opportunity slip by ... I now consider a permanent Middle East settlement to be the most important final goal to which we must devote ourselves. Nixon made one of his final international visits as president to the Middle East in June 1974, and became the first President to visit Israel. Domestic policy Economy At the time Nixon took office in 1969, inflation was at 4.7 percent—its highest rate since the Korean War. The Great Society had been enacted under Johnson, which, together with the Vietnam War costs, was causing large budget deficits. Unemployment was low, but interest rates were at their highest in a century. Nixon's major economic goal was to reduce inflation; the most obvious means of doing so was to end the war. This could not be accomplished overnight, and the U.S. economy continued to struggle through 1970, contributing to a lackluster Republican performance in the midterm congressional elections (Democrats controlled both Houses of Congress throughout Nixon's presidency). According to political economist Nigel Bowles in his 2011 study of Nixon's economic record, the new president did little to alter