the final word in major foreign policy decisions. The minister of foreign affairs, a senior member of the cabinet, acts as the prime minister's chief adviser in matters of planning and implementation. The minister is assisted by two vice ministers: one in charge of administration, who was at the apex of the Ministry of Foreign Affairs structure as its senior career official, and the other in charge of political liaison with the Diet. Other key positions in the ministry include members of the ministry's Secretariat, which has divisions handling consular, emigration, communications, and cultural exchange functions, and the directors of the various regional and functional bureaus in the ministry. History to 1945 Postwar period Throughout the post–World War II period, Japan concentrated on economic growth. It accommodated itself flexibly to the regional and global policies of the United States while avoiding major initiatives of its own; adhered to pacifist principles embodied in the 1947 constitution, referred to as the "peace constitution"; and generally took a passive, low-profile role in world affairs. Relations with other countries were governed by what the leadership called "omnidirectional diplomacy," which was essentially a policy of maintaining political neutrality in foreign affairs while expanding economic relations wherever possible. This policy was highly successful and allowed Japan to prosper and grow as an economic power, but it was feasible only while the country enjoyed the security and economic stability provided by its ally, the United States. Post-occupation Japan The Yoshida Doctrine was a strategy adopted by Japan under Prime Minister Shigeru Yoshida, the prime minister 1948–1954. He concentrated upon reconstructing Japan's domestic economy while relying heavily on the security alliance with the United States. The Yoshida Doctrine emerged in 1951 and it shaped Japanese foreign policy into the 21st century. First, Japan is firmly allied with the United States in the Cold War against Communism. Second, Japan relies on American military strength and limits its own defence forces to a minimum. Third, Japan emphasizes economic diplomacy in its world affairs. The Yoshida doctrine was accepted by the United States; the actual term was coined in 1977. The economic dimension was fostered by Hayato Ikeda who served as finance minister and later as prime minister. Most historians argue the policy was wise and successful, but a minority criticize it as naïve and inappropriate. When Japan regained its sovereignty in 1952 and reentered the international community as an independent