Shinzō Abe is a Japanese politician serving as the 57th and current Prime Minister of Japan and Leader of the Liberal Democratic Party (LDP) since 2012, previously being the 57th officeholder from 2006 to 2007. He is the third-longest serving Prime Minister in post-war Japan. Abe comes from a politically prominent family and was first elected Prime Minister by a special session of the National Diet in September 2006. Then aged 52, he became Japan's youngest post-war Prime Minister and the first to have been born after World War II. Abe resigned on 12 September 2007 for health reasons. He was replaced by Yasuo Fukuda, the first in a series of five Prime Ministers who failed to retain office for more than sixteen months.